51729990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:198

約数の個数: 128

約数和(自身を含む): 143216640

約数和(自身を除く): 91486650

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 73, 78, 79, 115, 130, 138, 146, 158, 195, 219, 230, 237, 299, 345, 365, 390, 395, 438, 474, 598, 690, 730, 790, 897, 949, 1027, 1095, 1185, 1495, 1679, 1794, 1817, 1898, 2054, 2190, 2370, 2847, 2990, 3081, 3358, 3634, 4485, 4745, 5037, 5135, 5451, 5694, 5767, 6162, 8395, 8970, 9085, 9490, 10074, 10270, 10902, 11534, 14235, 15405, 16790, 17301, 18170, 21827, 23621, 25185, 27255, 28470, 28835, 30810, 34602, 43654, 47242, 50370, 54510, 57670, 65481, 70863, 74971, 86505, 109135, 118105, 130962, 132641, 141726, 149942, 173010, 218270, 224913, 236210, 265282, 327405, 354315, 374855, 397923, 449826, 654810, 663205, 708630, 749710, 795846, 1124565, 1326410, 1724333, 1989615, 2249130, 3448666, 3979230, 5172999, 8621665, 10345998, 17243330, 25864995, 51729990]

約数ペア:

[(1, 51729990), (2, 25864995), (3, 17243330), (5, 10345998), (6, 8621665), (10, 5172999), (13, 3979230), (15, 3448666), (23, 2249130), (26, 1989615), (30, 1724333), (39, 1326410), (46, 1124565), (65, 795846), (69, 749710), (73, 708630), (78, 663205), (79, 654810), (115, 449826), (130, 397923), (138, 374855), (146, 354315), (158, 327405), (195, 265282), (219, 236210), (230, 224913), (237, 218270), (299, 173010), (345, 149942), (365, 141726), (390, 132641), (395, 130962), (438, 118105), (474, 109135), (598, 86505), (690, 74971), (730, 70863), (790, 65481), (897, 57670), (949, 54510), (1027, 50370), (1095, 47242), (1185, 43654), (1495, 34602), (1679, 30810), (1794, 28835), (1817, 28470), (1898, 27255), (2054, 25185), (2190, 23621), (2370, 21827), (2847, 18170), (2990, 17301), (3081, 16790), (3358, 15405), (3634, 14235), (4485, 11534), (4745, 10902), (5037, 10270), (5135, 10074), (5451, 9490), (5694, 9085), (5767, 8970), (6162, 8395)]