81234560

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1049}}^1$

素因数の和:1090

約数の個数: 96

約数和(自身を含む): 213664500

約数和(自身を除く): 132429940

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 242, 320, 352, 440, 484, 605, 640, 704, 880, 968, 1049, 1210, 1408, 1760, 1936, 2098, 2420, 3520, 3872, 4196, 4840, 5245, 7040, 7744, 8392, 9680, 10490, 11539, 15488, 16784, 19360, 20980, 23078, 33568, 38720, 41960, 46156, 57695, 67136, 77440, 83920, 92312, 115390, 126929, 134272, 167840, 184624, 230780, 253858, 335680, 369248, 461560, 507716, 634645, 671360, 738496, 923120, 1015432, 1269290, 1476992, 1846240, 2030864, 2538580, 3692480, 4061728, 5077160, 7384960, 8123456, 10154320, 16246912, 20308640, 40617280, 81234560]

約数ペア:

[(1, 81234560), (2, 40617280), (4, 20308640), (5, 16246912), (8, 10154320), (10, 8123456), (11, 7384960), (16, 5077160), (20, 4061728), (22, 3692480), (32, 2538580), (40, 2030864), (44, 1846240), (55, 1476992), (64, 1269290), (80, 1015432), (88, 923120), (110, 738496), (121, 671360), (128, 634645), (160, 507716), (176, 461560), (220, 369248), (242, 335680), (320, 253858), (352, 230780), (440, 184624), (484, 167840), (605, 134272), (640, 126929), (704, 115390), (880, 92312), (968, 83920), (1049, 77440), (1210, 67136), (1408, 57695), (1760, 46156), (1936, 41960), (2098, 38720), (2420, 33568), (3520, 23078), (3872, 20980), (4196, 19360), (4840, 16784), (5245, 15488), (7040, 11539), (7744, 10490), (8392, 9680)]