19436701450

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{491}}^1\times {\mathrm{12979}}^1$

素因数の和:13543

約数の個数: 48

約数和(自身を含む): 36822598560

約数和(自身を除く): 17385897110

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 305, 491, 610, 982, 1525, 2455, 3050, 4910, 12275, 12979, 24550, 25958, 29951, 59902, 64895, 129790, 149755, 299510, 324475, 648950, 748775, 791719, 1497550, 1583438, 3958595, 6372689, 7917190, 12745378, 19792975, 31863445, 39585950, 63726890, 159317225, 318634450, 388734029, 777468058, 1943670145, 3887340290, 9718350725, 19436701450]

約数ペア:

[(1, 19436701450), (2, 9718350725), (5, 3887340290), (10, 1943670145), (25, 777468058), (50, 388734029), (61, 318634450), (122, 159317225), (305, 63726890), (491, 39585950), (610, 31863445), (982, 19792975), (1525, 12745378), (2455, 7917190), (3050, 6372689), (4910, 3958595), (12275, 1583438), (12979, 1497550), (24550, 791719), (25958, 748775), (29951, 648950), (59902, 324475), (64895, 299510), (129790, 149755)]