86666980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1741}}^1$

素因数の和:1900

約数の個数: 48

約数和(自身を含む): 193152960

約数和(自身を除く): 106485980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 262, 380, 524, 655, 1310, 1741, 2489, 2620, 3482, 4978, 6964, 8705, 9956, 12445, 17410, 24890, 33079, 34820, 49780, 66158, 132316, 165395, 228071, 330790, 456142, 661580, 912284, 1140355, 2280710, 4333349, 4561420, 8666698, 17333396, 21666745, 43333490, 86666980]

約数ペア:

[(1, 86666980), (2, 43333490), (4, 21666745), (5, 17333396), (10, 8666698), (19, 4561420), (20, 4333349), (38, 2280710), (76, 1140355), (95, 912284), (131, 661580), (190, 456142), (262, 330790), (380, 228071), (524, 165395), (655, 132316), (1310, 66158), (1741, 49780), (2489, 34820), (2620, 33079), (3482, 24890), (4978, 17410), (6964, 12445), (8705, 9956)]