40647820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1237}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 89849088

約数和(自身を除く): 49201268

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 265, 310, 530, 620, 1060, 1237, 1643, 2474, 3286, 4948, 6185, 6572, 8215, 12370, 16430, 24740, 32860, 38347, 65561, 76694, 131122, 153388, 191735, 262244, 327805, 383470, 655610, 766940, 1311220, 2032391, 4064782, 8129564, 10161955, 20323910, 40647820]

約数ペア:

[(1, 40647820), (2, 20323910), (4, 10161955), (5, 8129564), (10, 4064782), (20, 2032391), (31, 1311220), (53, 766940), (62, 655610), (106, 383470), (124, 327805), (155, 262244), (212, 191735), (265, 153388), (310, 131122), (530, 76694), (620, 65561), (1060, 38347), (1237, 32860), (1643, 24740), (2474, 16430), (3286, 12370), (4948, 8215), (6185, 6572)]