18490900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 43356600

約数和(自身を除く): 24865700

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 73, 85, 100, 146, 149, 170, 292, 298, 340, 365, 425, 596, 730, 745, 850, 1241, 1460, 1490, 1700, 1825, 2482, 2533, 2980, 3650, 3725, 4964, 5066, 6205, 7300, 7450, 10132, 10877, 12410, 12665, 14900, 21754, 24820, 25330, 31025, 43508, 50660, 54385, 62050, 63325, 108770, 124100, 126650, 184909, 217540, 253300, 271925, 369818, 543850, 739636, 924545, 1087700, 1849090, 3698180, 4622725, 9245450, 18490900]

約数ペア:

[(1, 18490900), (2, 9245450), (4, 4622725), (5, 3698180), (10, 1849090), (17, 1087700), (20, 924545), (25, 739636), (34, 543850), (50, 369818), (68, 271925), (73, 253300), (85, 217540), (100, 184909), (146, 126650), (149, 124100), (170, 108770), (292, 63325), (298, 62050), (340, 54385), (365, 50660), (425, 43508), (596, 31025), (730, 25330), (745, 24820), (850, 21754), (1241, 14900), (1460, 12665), (1490, 12410), (1700, 10877), (1825, 10132), (2482, 7450), (2533, 7300), (2980, 6205), (3650, 5066), (3725, 4964)]