256289040

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{241}}^1$

素因数の和:478

約数の個数: 240

約数和(自身を含む): 992424576

約数和(自身を除く): 736135536

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 211, 240, 241, 252, 280, 315, 336, 360, 420, 422, 482, 504, 560, 630, 633, 720, 723, 840, 844, 964, 1008, 1055, 1205, 1260, 1266, 1446, 1477, 1680, 1687, 1688, 1899, 1928, 2110, 2169, 2410, 2520, 2532, 2892, 2954, 3165, 3374, 3376, 3615, 3798, 3856, 4220, 4338, 4431, 4820, 5040, 5061, 5064, 5784, 5908, 6330, 6748, 7230, 7385, 7596, 8435, 8440, 8676, 8862, 9495, 9640, 10122, 10128, 10845, 11568, 11816, 12660, 13293, 13496, 14460, 14770, 15183, 15192, 16870, 16880, 17352, 17724, 18990, 19280, 20244, 21690, 22155, 23632, 25305, 25320, 26586, 26992, 28920, 29540, 30366, 30384, 33740, 34704, 35448, 37980, 40488, 43380, 44310, 50610, 50640, 50851, 53172, 57840, 59080, 60732, 66465, 67480, 70896, 75915, 75960, 80976, 86760, 88620, 101220, 101702, 106344, 118160, 121464, 132930, 134960, 151830, 151920, 152553, 173520, 177240, 202440, 203404, 212688, 242928, 254255, 265860, 303660, 305106, 354480, 355957, 404880, 406808, 457659, 508510, 531720, 607320, 610212, 711914, 762765, 813616, 915318, 1017020, 1063440, 1067871, 1214640, 1220424, 1423828, 1525530, 1779785, 1830636, 2034040, 2135742, 2288295, 2440848, 2847656, 3051060, 3203613, 3559570, 3661272, 4068080, 4271484, 4576590, 5339355, 5695312, 6102120, 6407226, 7119140, 7322544, 8542968, 9153180, 10678710, 12204240, 12814452, 14238280, 16018065, 17085936, 18306360, 21357420, 25628904, 28476560, 32036130, 36612720, 42714840, 51257808, 64072260, 85429680, 128144520, 256289040]

約数ペア:

[(1, 256289040), (2, 128144520), (3, 85429680), (4, 64072260), (5, 51257808), (6, 42714840), (7, 36612720), (8, 32036130), (9, 28476560), (10, 25628904), (12, 21357420), (14, 18306360), (15, 17085936), (16, 16018065), (18, 14238280), (20, 12814452), (21, 12204240), (24, 10678710), (28, 9153180), (30, 8542968), (35, 7322544), (36, 7119140), (40, 6407226), (42, 6102120), (45, 5695312), (48, 5339355), (56, 4576590), (60, 4271484), (63, 4068080), (70, 3661272), (72, 3559570), (80, 3203613), (84, 3051060), (90, 2847656), (105, 2440848), (112, 2288295), (120, 2135742), (126, 2034040), (140, 1830636), (144, 1779785), (168, 1525530), (180, 1423828), (210, 1220424), (211, 1214640), (240, 1067871), (241, 1063440), (252, 1017020), (280, 915318), (315, 813616), (336, 762765), (360, 711914), (420, 610212), (422, 607320), (482, 531720), (504, 508510), (560, 457659), (630, 406808), (633, 404880), (720, 355957), (723, 354480), (840, 305106), (844, 303660), (964, 265860), (1008, 254255), (1055, 242928), (1205, 212688), (1260, 203404), (1266, 202440), (1446, 177240), (1477, 173520), (1680, 152553), (1687, 151920), (1688, 151830), (1899, 134960), (1928, 132930), (2110, 121464), (2169, 118160), (2410, 106344), (2520, 101702), (2532, 101220), (2892, 88620), (2954, 86760), (3165, 80976), (3374, 75960), (3376, 75915), (3615, 70896), (3798, 67480), (3856, 66465), (4220, 60732), (4338, 59080), (4431, 57840), (4820, 53172), (5040, 50851), (5061, 50640), (5064, 50610), (5784, 44310), (5908, 43380), (6330, 40488), (6748, 37980), (7230, 35448), (7385, 34704), (7596, 33740), (8435, 30384), (8440, 30366), (8676, 29540), (8862, 28920), (9495, 26992), (9640, 26586), (10122, 25320), (10128, 25305), (10845, 23632), (11568, 22155), (11816, 21690), (12660, 20244), (13293, 19280), (13496, 18990), (14460, 17724), (14770, 17352), (15183, 16880), (15192, 16870)]