638241240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{277}}^1$

素因数の和:522

約数の個数: 256

約数和(自身を含む): 2376299520

約数和(自身を除く): 1738058280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 211, 260, 273, 277, 280, 312, 364, 390, 420, 422, 455, 520, 546, 554, 633, 728, 780, 831, 840, 844, 910, 1055, 1092, 1108, 1266, 1365, 1385, 1477, 1560, 1662, 1688, 1820, 1939, 2110, 2184, 2216, 2532, 2730, 2743, 2770, 2954, 3165, 3324, 3601, 3640, 3878, 4155, 4220, 4431, 5064, 5460, 5486, 5540, 5817, 5908, 6330, 6648, 7202, 7385, 7756, 8229, 8310, 8440, 8862, 9695, 10803, 10920, 10972, 11080, 11634, 11816, 12660, 13715, 14404, 14770, 15512, 16458, 16620, 17724, 18005, 19201, 19390, 21606, 21944, 22155, 23268, 25207, 25320, 27430, 28808, 29085, 29540, 32916, 33240, 35448, 36010, 38402, 38780, 41145, 43212, 44310, 46536, 50414, 54015, 54860, 57603, 58170, 58447, 59080, 65832, 72020, 75621, 76804, 77560, 82290, 86424, 88620, 96005, 100828, 108030, 109720, 115206, 116340, 116894, 126035, 144040, 151242, 153608, 164580, 175341, 177240, 192010, 201656, 216060, 230412, 232680, 233788, 252070, 288015, 292235, 302484, 329160, 350682, 378105, 384020, 409129, 432120, 460824, 467576, 504140, 576030, 584470, 604968, 701364, 756210, 759811, 768040, 818258, 876705, 1008280, 1152060, 1168940, 1227387, 1402728, 1512420, 1519622, 1636516, 1753410, 2045645, 2279433, 2304120, 2337880, 2454774, 3024840, 3039244, 3273032, 3506820, 3799055, 4091290, 4558866, 4909548, 5318677, 6078488, 6136935, 7013640, 7598110, 8182580, 9117732, 9819096, 10637354, 11397165, 12273870, 15196220, 15956031, 16365160, 18235464, 21274708, 22794330, 24547740, 26593385, 30392440, 31912062, 42549416, 45588660, 49095480, 53186770, 63824124, 79780155, 91177320, 106373540, 127648248, 159560310, 212747080, 319120620, 638241240]

約数ペア:

[(1, 638241240), (2, 319120620), (3, 212747080), (4, 159560310), (5, 127648248), (6, 106373540), (7, 91177320), (8, 79780155), (10, 63824124), (12, 53186770), (13, 49095480), (14, 45588660), (15, 42549416), (20, 31912062), (21, 30392440), (24, 26593385), (26, 24547740), (28, 22794330), (30, 21274708), (35, 18235464), (39, 16365160), (40, 15956031), (42, 15196220), (52, 12273870), (56, 11397165), (60, 10637354), (65, 9819096), (70, 9117732), (78, 8182580), (84, 7598110), (91, 7013640), (104, 6136935), (105, 6078488), (120, 5318677), (130, 4909548), (140, 4558866), (156, 4091290), (168, 3799055), (182, 3506820), (195, 3273032), (210, 3039244), (211, 3024840), (260, 2454774), (273, 2337880), (277, 2304120), (280, 2279433), (312, 2045645), (364, 1753410), (390, 1636516), (420, 1519622), (422, 1512420), (455, 1402728), (520, 1227387), (546, 1168940), (554, 1152060), (633, 1008280), (728, 876705), (780, 818258), (831, 768040), (840, 759811), (844, 756210), (910, 701364), (1055, 604968), (1092, 584470), (1108, 576030), (1266, 504140), (1365, 467576), (1385, 460824), (1477, 432120), (1560, 409129), (1662, 384020), (1688, 378105), (1820, 350682), (1939, 329160), (2110, 302484), (2184, 292235), (2216, 288015), (2532, 252070), (2730, 233788), (2743, 232680), (2770, 230412), (2954, 216060), (3165, 201656), (3324, 192010), (3601, 177240), (3640, 175341), (3878, 164580), (4155, 153608), (4220, 151242), (4431, 144040), (5064, 126035), (5460, 116894), (5486, 116340), (5540, 115206), (5817, 109720), (5908, 108030), (6330, 100828), (6648, 96005), (7202, 88620), (7385, 86424), (7756, 82290), (8229, 77560), (8310, 76804), (8440, 75621), (8862, 72020), (9695, 65832), (10803, 59080), (10920, 58447), (10972, 58170), (11080, 57603), (11634, 54860), (11816, 54015), (12660, 50414), (13715, 46536), (14404, 44310), (14770, 43212), (15512, 41145), (16458, 38780), (16620, 38402), (17724, 36010), (18005, 35448), (19201, 33240), (19390, 32916), (21606, 29540), (21944, 29085), (22155, 28808), (23268, 27430), (25207, 25320)]