65657960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 152668800

約数和(自身を除く): 87010840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 71, 122, 142, 244, 284, 305, 355, 379, 488, 568, 610, 710, 758, 1220, 1420, 1516, 1895, 2440, 2840, 3032, 3790, 4331, 7580, 8662, 15160, 17324, 21655, 23119, 26909, 34648, 43310, 46238, 53818, 86620, 92476, 107636, 115595, 134545, 173240, 184952, 215272, 231190, 269090, 462380, 538180, 924760, 1076360, 1641449, 3282898, 6565796, 8207245, 13131592, 16414490, 32828980, 65657960]

約数ペア:

[(1, 65657960), (2, 32828980), (4, 16414490), (5, 13131592), (8, 8207245), (10, 6565796), (20, 3282898), (40, 1641449), (61, 1076360), (71, 924760), (122, 538180), (142, 462380), (244, 269090), (284, 231190), (305, 215272), (355, 184952), (379, 173240), (488, 134545), (568, 115595), (610, 107636), (710, 92476), (758, 86620), (1220, 53818), (1420, 46238), (1516, 43310), (1895, 34648), (2440, 26909), (2840, 23119), (3032, 21655), (3790, 17324), (4331, 15160), (7580, 8662)]