90144580

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1997}}^1$

素因数の和:2104

約数の個数: 48

約数和(自身を含む): 197706096

約数和(自身を除く): 107561516

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 244, 305, 370, 610, 740, 1220, 1997, 2257, 3994, 4514, 7988, 9028, 9985, 11285, 19970, 22570, 39940, 45140, 73889, 121817, 147778, 243634, 295556, 369445, 487268, 609085, 738890, 1218170, 1477780, 2436340, 4507229, 9014458, 18028916, 22536145, 45072290, 90144580]

約数ペア:

[(1, 90144580), (2, 45072290), (4, 22536145), (5, 18028916), (10, 9014458), (20, 4507229), (37, 2436340), (61, 1477780), (74, 1218170), (122, 738890), (148, 609085), (185, 487268), (244, 369445), (305, 295556), (370, 243634), (610, 147778), (740, 121817), (1220, 73889), (1997, 45140), (2257, 39940), (3994, 22570), (4514, 19970), (7988, 11285), (9028, 9985)]