72438460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{367}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 155796480

約数和(自身を除く): 83358020

約数列:

[1, 2, 4, 5, 10, 20, 71, 139, 142, 278, 284, 355, 367, 556, 695, 710, 734, 1390, 1420, 1468, 1835, 2780, 3670, 7340, 9869, 19738, 26057, 39476, 49345, 51013, 52114, 98690, 102026, 104228, 130285, 197380, 204052, 255065, 260570, 510130, 521140, 1020260, 3621923, 7243846, 14487692, 18109615, 36219230, 72438460]

約数ペア:

[(1, 72438460), (2, 36219230), (4, 18109615), (5, 14487692), (10, 7243846), (20, 3621923), (71, 1020260), (139, 521140), (142, 510130), (278, 260570), (284, 255065), (355, 204052), (367, 197380), (556, 130285), (695, 104228), (710, 102026), (734, 98690), (1390, 52114), (1420, 51013), (1468, 49345), (1835, 39476), (2780, 26057), (3670, 19738), (7340, 9869)]