128420574860

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1787}}^1\times {\mathrm{13259}}^1$

素因数の和:15326

約数の個数: 48

約数和(自身を含む): 270850245120

約数和(自身を除く): 142429670260

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 1787, 2710, 3574, 5420, 7148, 8935, 13259, 17870, 26518, 35740, 53036, 66295, 132590, 265180, 484277, 968554, 1937108, 2421385, 3593189, 4842770, 7186378, 9685540, 14372756, 17965945, 23693833, 35931890, 47387666, 71863780, 94775332, 118469165, 236938330, 473876660, 6421028743, 12842057486, 25684114972, 32105143715, 64210287430, 128420574860]

約数ペア:

[(1, 128420574860), (2, 64210287430), (4, 32105143715), (5, 25684114972), (10, 12842057486), (20, 6421028743), (271, 473876660), (542, 236938330), (1084, 118469165), (1355, 94775332), (1787, 71863780), (2710, 47387666), (3574, 35931890), (5420, 23693833), (7148, 17965945), (8935, 14372756), (13259, 9685540), (17870, 7186378), (26518, 4842770), (35740, 3593189), (53036, 2421385), (66295, 1937108), (132590, 968554), (265180, 484277)]