20028120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 69603840

約数和(自身を除く): 49575720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 113, 120, 140, 168, 210, 211, 226, 280, 339, 420, 422, 452, 565, 633, 678, 791, 840, 844, 904, 1055, 1130, 1266, 1356, 1477, 1582, 1688, 1695, 2110, 2260, 2373, 2532, 2712, 2954, 3164, 3165, 3390, 3955, 4220, 4431, 4520, 4746, 5064, 5908, 6328, 6330, 6780, 7385, 7910, 8440, 8862, 9492, 11816, 11865, 12660, 13560, 14770, 15820, 17724, 18984, 22155, 23730, 23843, 25320, 29540, 31640, 35448, 44310, 47460, 47686, 59080, 71529, 88620, 94920, 95372, 119215, 143058, 166901, 177240, 190744, 238430, 286116, 333802, 357645, 476860, 500703, 572232, 667604, 715290, 834505, 953720, 1001406, 1335208, 1430580, 1669010, 2002812, 2503515, 2861160, 3338020, 4005624, 5007030, 6676040, 10014060, 20028120]

約数ペア:

[(1, 20028120), (2, 10014060), (3, 6676040), (4, 5007030), (5, 4005624), (6, 3338020), (7, 2861160), (8, 2503515), (10, 2002812), (12, 1669010), (14, 1430580), (15, 1335208), (20, 1001406), (21, 953720), (24, 834505), (28, 715290), (30, 667604), (35, 572232), (40, 500703), (42, 476860), (56, 357645), (60, 333802), (70, 286116), (84, 238430), (105, 190744), (113, 177240), (120, 166901), (140, 143058), (168, 119215), (210, 95372), (211, 94920), (226, 88620), (280, 71529), (339, 59080), (420, 47686), (422, 47460), (452, 44310), (565, 35448), (633, 31640), (678, 29540), (791, 25320), (840, 23843), (844, 23730), (904, 22155), (1055, 18984), (1130, 17724), (1266, 15820), (1356, 14770), (1477, 13560), (1582, 12660), (1688, 11865), (1695, 11816), (2110, 9492), (2260, 8862), (2373, 8440), (2532, 7910), (2712, 7385), (2954, 6780), (3164, 6330), (3165, 6328), (3390, 5908), (3955, 5064), (4220, 4746), (4431, 4520)]