90475540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{331}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 194100480

約数和(自身を除く): 103624940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 173, 316, 331, 346, 395, 662, 692, 790, 865, 1324, 1580, 1655, 1730, 3310, 3460, 6620, 13667, 26149, 27334, 52298, 54668, 57263, 68335, 104596, 114526, 130745, 136670, 229052, 261490, 273340, 286315, 522980, 572630, 1145260, 4523777, 9047554, 18095108, 22618885, 45237770, 90475540]

約数ペア:

[(1, 90475540), (2, 45237770), (4, 22618885), (5, 18095108), (10, 9047554), (20, 4523777), (79, 1145260), (158, 572630), (173, 522980), (316, 286315), (331, 273340), (346, 261490), (395, 229052), (662, 136670), (692, 130745), (790, 114526), (865, 104596), (1324, 68335), (1580, 57263), (1655, 54668), (1730, 52298), (3310, 27334), (3460, 26149), (6620, 13667)]