209518270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:1009

約数の個数: 64

約数和(自身を含む): 429649920

約数和(自身を除く): 220131650

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 79, 115, 130, 158, 230, 299, 395, 598, 790, 887, 1027, 1495, 1774, 1817, 2054, 2990, 3634, 4435, 5135, 8870, 9085, 10270, 11531, 18170, 20401, 23062, 23621, 40802, 47242, 57655, 70073, 102005, 115310, 118105, 140146, 204010, 236210, 265213, 350365, 530426, 700730, 910949, 1326065, 1611679, 1821898, 2652130, 3223358, 4554745, 8058395, 9109490, 16116790, 20951827, 41903654, 104759135, 209518270]

約数ペア:

[(1, 209518270), (2, 104759135), (5, 41903654), (10, 20951827), (13, 16116790), (23, 9109490), (26, 8058395), (46, 4554745), (65, 3223358), (79, 2652130), (115, 1821898), (130, 1611679), (158, 1326065), (230, 910949), (299, 700730), (395, 530426), (598, 350365), (790, 265213), (887, 236210), (1027, 204010), (1495, 140146), (1774, 118105), (1817, 115310), (2054, 102005), (2990, 70073), (3634, 57655), (4435, 47242), (5135, 40802), (8870, 23621), (9085, 23062), (10270, 20401), (11531, 18170)]