256913790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:674

約数の個数: 128

約数和(自身を含む): 736791552

約数和(自身を除く): 479877762

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 41, 42, 53, 70, 82, 105, 106, 123, 159, 205, 210, 246, 265, 287, 318, 371, 410, 530, 563, 574, 615, 742, 795, 861, 1113, 1126, 1230, 1435, 1590, 1689, 1722, 1855, 2173, 2226, 2815, 2870, 3378, 3710, 3941, 4305, 4346, 5565, 5630, 6519, 7882, 8445, 8610, 10865, 11130, 11823, 13038, 15211, 16890, 19705, 21730, 23083, 23646, 29839, 30422, 32595, 39410, 45633, 46166, 59115, 59678, 65190, 69249, 76055, 89517, 91266, 115415, 118230, 138498, 149195, 152110, 161581, 179034, 208873, 228165, 230830, 298390, 323162, 346245, 417746, 447585, 456330, 484743, 626619, 692490, 807905, 895170, 969486, 1044365, 1223399, 1253238, 1615810, 2088730, 2423715, 2446798, 3133095, 3670197, 4847430, 6116995, 6266190, 7340394, 8563793, 12233990, 17127586, 18350985, 25691379, 36701970, 42818965, 51382758, 85637930, 128456895, 256913790]

約数ペア:

[(1, 256913790), (2, 128456895), (3, 85637930), (5, 51382758), (6, 42818965), (7, 36701970), (10, 25691379), (14, 18350985), (15, 17127586), (21, 12233990), (30, 8563793), (35, 7340394), (41, 6266190), (42, 6116995), (53, 4847430), (70, 3670197), (82, 3133095), (105, 2446798), (106, 2423715), (123, 2088730), (159, 1615810), (205, 1253238), (210, 1223399), (246, 1044365), (265, 969486), (287, 895170), (318, 807905), (371, 692490), (410, 626619), (530, 484743), (563, 456330), (574, 447585), (615, 417746), (742, 346245), (795, 323162), (861, 298390), (1113, 230830), (1126, 228165), (1230, 208873), (1435, 179034), (1590, 161581), (1689, 152110), (1722, 149195), (1855, 138498), (2173, 118230), (2226, 115415), (2815, 91266), (2870, 89517), (3378, 76055), (3710, 69249), (3941, 65190), (4305, 59678), (4346, 59115), (5565, 46166), (5630, 45633), (6519, 39410), (7882, 32595), (8445, 30422), (8610, 29839), (10865, 23646), (11130, 23083), (11823, 21730), (13038, 19705), (15211, 16890)]