31479656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 68040000

約数和(自身を除く): 36560344

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 89, 104, 152, 178, 179, 247, 356, 358, 494, 712, 716, 988, 1157, 1432, 1691, 1976, 2314, 2327, 3382, 3401, 4628, 4654, 6764, 6802, 9256, 9308, 13528, 13604, 15931, 18616, 21983, 27208, 31862, 43966, 44213, 63724, 87932, 88426, 127448, 175864, 176852, 207103, 302689, 353704, 414206, 605378, 828412, 1210756, 1656824, 2421512, 3934957, 7869914, 15739828, 31479656]

約数ペア:

[(1, 31479656), (2, 15739828), (4, 7869914), (8, 3934957), (13, 2421512), (19, 1656824), (26, 1210756), (38, 828412), (52, 605378), (76, 414206), (89, 353704), (104, 302689), (152, 207103), (178, 176852), (179, 175864), (247, 127448), (356, 88426), (358, 87932), (494, 63724), (712, 44213), (716, 43966), (988, 31862), (1157, 27208), (1432, 21983), (1691, 18616), (1976, 15931), (2314, 13604), (2327, 13528), (3382, 9308), (3401, 9256), (4628, 6802), (4654, 6764)]