816889520

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{68531}}^1$

素因数の和:68693

約数の個数: 40

約数和(自身を含む): 1912042800

約数和(自身を除く): 1095153280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 11920, 68531, 137062, 274124, 342655, 548248, 685310, 1096496, 1370620, 2741240, 5482480, 10211119, 20422238, 40844476, 51055595, 81688952, 102111190, 163377904, 204222380, 408444760, 816889520]

約数ペア:

[(1, 816889520), (2, 408444760), (4, 204222380), (5, 163377904), (8, 102111190), (10, 81688952), (16, 51055595), (20, 40844476), (40, 20422238), (80, 10211119), (149, 5482480), (298, 2741240), (596, 1370620), (745, 1096496), (1192, 685310), (1490, 548248), (2384, 342655), (2980, 274124), (5960, 137062), (11920, 68531)]