440147140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{577}}^1\times {\mathrm{887}}^1$

素因数の和:1516

約数の個数: 48

約数和(自身を含む): 948511872

約数和(自身を除く): 508364732

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 577, 860, 887, 1154, 1774, 2308, 2885, 3548, 4435, 5770, 8870, 11540, 17740, 24811, 38141, 49622, 76282, 99244, 124055, 152564, 190705, 248110, 381410, 496220, 511799, 762820, 1023598, 2047196, 2558995, 5117990, 10235980, 22007357, 44014714, 88029428, 110036785, 220073570, 440147140]

約数ペア:

[(1, 440147140), (2, 220073570), (4, 110036785), (5, 88029428), (10, 44014714), (20, 22007357), (43, 10235980), (86, 5117990), (172, 2558995), (215, 2047196), (430, 1023598), (577, 762820), (860, 511799), (887, 496220), (1154, 381410), (1774, 248110), (2308, 190705), (2885, 152564), (3548, 124055), (4435, 99244), (5770, 76282), (8870, 49622), (11540, 38141), (17740, 24811)]