72005120

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2557}}^1$

素因数の和:2591

約数の個数: 80

約数和(自身を含む): 188412048

約数和(自身を除く): 116406928

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 704, 880, 1280, 1408, 1760, 2557, 2560, 2816, 3520, 5114, 5632, 7040, 10228, 12785, 14080, 20456, 25570, 28127, 28160, 40912, 51140, 56254, 81824, 102280, 112508, 140635, 163648, 204560, 225016, 281270, 327296, 409120, 450032, 562540, 654592, 818240, 900064, 1125080, 1309184, 1636480, 1800128, 2250160, 3272960, 3600256, 4500320, 6545920, 7200512, 9000640, 14401024, 18001280, 36002560, 72005120]

約数ペア:

[(1, 72005120), (2, 36002560), (4, 18001280), (5, 14401024), (8, 9000640), (10, 7200512), (11, 6545920), (16, 4500320), (20, 3600256), (22, 3272960), (32, 2250160), (40, 1800128), (44, 1636480), (55, 1309184), (64, 1125080), (80, 900064), (88, 818240), (110, 654592), (128, 562540), (160, 450032), (176, 409120), (220, 327296), (256, 281270), (320, 225016), (352, 204560), (440, 163648), (512, 140635), (640, 112508), (704, 102280), (880, 81824), (1280, 56254), (1408, 51140), (1760, 40912), (2557, 28160), (2560, 28127), (2816, 25570), (3520, 20456), (5114, 14080), (5632, 12785), (7040, 10228)]