31489640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:283

約数の個数: 128

約数和(自身を含む): 89752320

約数和(自身を除く): 58262680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 41, 52, 56, 65, 70, 82, 91, 104, 130, 140, 164, 182, 205, 211, 260, 280, 287, 328, 364, 410, 422, 455, 520, 533, 574, 728, 820, 844, 910, 1055, 1066, 1148, 1435, 1477, 1640, 1688, 1820, 2110, 2132, 2296, 2665, 2743, 2870, 2954, 3640, 3731, 4220, 4264, 5330, 5486, 5740, 5908, 7385, 7462, 8440, 8651, 10660, 10972, 11480, 11816, 13715, 14770, 14924, 17302, 18655, 19201, 21320, 21944, 27430, 29540, 29848, 34604, 37310, 38402, 43255, 54860, 59080, 60557, 69208, 74620, 76804, 86510, 96005, 109720, 112463, 121114, 149240, 153608, 173020, 192010, 224926, 242228, 302785, 346040, 384020, 449852, 484456, 562315, 605570, 768040, 787241, 899704, 1124630, 1211140, 1574482, 2249260, 2422280, 3148964, 3936205, 4498520, 6297928, 7872410, 15744820, 31489640]

約数ペア:

[(1, 31489640), (2, 15744820), (4, 7872410), (5, 6297928), (7, 4498520), (8, 3936205), (10, 3148964), (13, 2422280), (14, 2249260), (20, 1574482), (26, 1211140), (28, 1124630), (35, 899704), (40, 787241), (41, 768040), (52, 605570), (56, 562315), (65, 484456), (70, 449852), (82, 384020), (91, 346040), (104, 302785), (130, 242228), (140, 224926), (164, 192010), (182, 173020), (205, 153608), (211, 149240), (260, 121114), (280, 112463), (287, 109720), (328, 96005), (364, 86510), (410, 76804), (422, 74620), (455, 69208), (520, 60557), (533, 59080), (574, 54860), (728, 43255), (820, 38402), (844, 37310), (910, 34604), (1055, 29848), (1066, 29540), (1148, 27430), (1435, 21944), (1477, 21320), (1640, 19201), (1688, 18655), (1820, 17302), (2110, 14924), (2132, 14770), (2296, 13715), (2665, 11816), (2743, 11480), (2870, 10972), (2954, 10660), (3640, 8651), (3731, 8440), (4220, 7462), (4264, 7385), (5330, 5908), (5486, 5740)]