90648620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{1601}}^1$

素因数の和:1778

約数の個数: 48

約数和(自身を含む): 201852000

約数和(自身を除く): 111203380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 298, 380, 596, 745, 1490, 1601, 2831, 2980, 3202, 5662, 6404, 8005, 11324, 14155, 16010, 28310, 30419, 32020, 56620, 60838, 121676, 152095, 238549, 304190, 477098, 608380, 954196, 1192745, 2385490, 4532431, 4770980, 9064862, 18129724, 22662155, 45324310, 90648620]

約数ペア:

[(1, 90648620), (2, 45324310), (4, 22662155), (5, 18129724), (10, 9064862), (19, 4770980), (20, 4532431), (38, 2385490), (76, 1192745), (95, 954196), (149, 608380), (190, 477098), (298, 304190), (380, 238549), (596, 152095), (745, 121676), (1490, 60838), (1601, 56620), (2831, 32020), (2980, 30419), (3202, 28310), (5662, 16010), (6404, 14155), (8005, 11324)]