31246640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:430

約数の個数: 80

約数和(自身を含む): 77956320

約数和(自身を除く): 46709680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 95, 122, 152, 190, 244, 304, 305, 337, 380, 488, 610, 674, 760, 976, 1159, 1220, 1348, 1520, 1685, 2318, 2440, 2696, 3370, 4636, 4880, 5392, 5795, 6403, 6740, 9272, 11590, 12806, 13480, 18544, 20557, 23180, 25612, 26960, 32015, 41114, 46360, 51224, 64030, 82228, 92720, 102448, 102785, 128060, 164456, 205570, 256120, 328912, 390583, 411140, 512240, 781166, 822280, 1562332, 1644560, 1952915, 3124664, 3905830, 6249328, 7811660, 15623320, 31246640]

約数ペア:

[(1, 31246640), (2, 15623320), (4, 7811660), (5, 6249328), (8, 3905830), (10, 3124664), (16, 1952915), (19, 1644560), (20, 1562332), (38, 822280), (40, 781166), (61, 512240), (76, 411140), (80, 390583), (95, 328912), (122, 256120), (152, 205570), (190, 164456), (244, 128060), (304, 102785), (305, 102448), (337, 92720), (380, 82228), (488, 64030), (610, 51224), (674, 46360), (760, 41114), (976, 32015), (1159, 26960), (1220, 25612), (1348, 23180), (1520, 20557), (1685, 18544), (2318, 13480), (2440, 12806), (2696, 11590), (3370, 9272), (4636, 6740), (4880, 6403), (5392, 5795)]