81462880

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:372

約数の個数: 96

約数和(自身を含む): 205148160

約数和(自身を除く): 123685280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 127, 152, 160, 190, 211, 254, 304, 380, 422, 508, 608, 635, 760, 844, 1016, 1055, 1270, 1520, 1688, 2032, 2110, 2413, 2540, 3040, 3376, 4009, 4064, 4220, 4826, 5080, 6752, 8018, 8440, 9652, 10160, 12065, 16036, 16880, 19304, 20045, 20320, 24130, 26797, 32072, 33760, 38608, 40090, 48260, 53594, 64144, 77216, 80180, 96520, 107188, 128288, 133985, 160360, 193040, 214376, 267970, 320720, 386080, 428752, 509143, 535940, 641440, 857504, 1018286, 1071880, 2036572, 2143760, 2545715, 4073144, 4287520, 5091430, 8146288, 10182860, 16292576, 20365720, 40731440, 81462880]

約数ペア:

[(1, 81462880), (2, 40731440), (4, 20365720), (5, 16292576), (8, 10182860), (10, 8146288), (16, 5091430), (19, 4287520), (20, 4073144), (32, 2545715), (38, 2143760), (40, 2036572), (76, 1071880), (80, 1018286), (95, 857504), (127, 641440), (152, 535940), (160, 509143), (190, 428752), (211, 386080), (254, 320720), (304, 267970), (380, 214376), (422, 193040), (508, 160360), (608, 133985), (635, 128288), (760, 107188), (844, 96520), (1016, 80180), (1055, 77216), (1270, 64144), (1520, 53594), (1688, 48260), (2032, 40090), (2110, 38608), (2413, 33760), (2540, 32072), (3040, 26797), (3376, 24130), (4009, 20320), (4064, 20045), (4220, 19304), (4826, 16880), (5080, 16036), (6752, 12065), (8018, 10160), (8440, 9652)]