31213160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{6449}}^1$

素因数の和:6482

約数の個数: 48

約数和(自身を含む): 77206500

約数和(自身を除く): 45993340

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 6449, 12898, 25796, 32245, 51592, 64490, 70939, 128980, 141878, 257960, 283756, 354695, 567512, 709390, 780329, 1418780, 1560658, 2837560, 3121316, 3901645, 6242632, 7803290, 15606580, 31213160]

約数ペア:

[(1, 31213160), (2, 15606580), (4, 7803290), (5, 6242632), (8, 3901645), (10, 3121316), (11, 2837560), (20, 1560658), (22, 1418780), (40, 780329), (44, 709390), (55, 567512), (88, 354695), (110, 283756), (121, 257960), (220, 141878), (242, 128980), (440, 70939), (484, 64490), (605, 51592), (968, 32245), (1210, 25796), (2420, 12898), (4840, 6449)]