31416680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{983}}^1$

素因数の和:1058

約数の個数: 64

約数和(自身を含む): 76515840

約数和(自身を除く): 45099160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 680, 799, 940, 983, 1598, 1880, 1966, 3196, 3932, 3995, 4915, 6392, 7864, 7990, 9830, 15980, 16711, 19660, 31960, 33422, 39320, 46201, 66844, 83555, 92402, 133688, 167110, 184804, 231005, 334220, 369608, 462010, 668440, 785417, 924020, 1570834, 1848040, 3141668, 3927085, 6283336, 7854170, 15708340, 31416680]

約数ペア:

[(1, 31416680), (2, 15708340), (4, 7854170), (5, 6283336), (8, 3927085), (10, 3141668), (17, 1848040), (20, 1570834), (34, 924020), (40, 785417), (47, 668440), (68, 462010), (85, 369608), (94, 334220), (136, 231005), (170, 184804), (188, 167110), (235, 133688), (340, 92402), (376, 83555), (470, 66844), (680, 46201), (799, 39320), (940, 33422), (983, 31960), (1598, 19660), (1880, 16711), (1966, 15980), (3196, 9830), (3932, 7990), (3995, 7864), (4915, 6392)]