71891840

素因数分解:

$2^7\times 5^1\times {\mathrm{112331}}^1$

素因数の和:112350

約数の個数: 32

約数和(自身を含む): 171867960

約数和(自身を除く): 99976120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 112331, 224662, 449324, 561655, 898648, 1123310, 1797296, 2246620, 3594592, 4493240, 7189184, 8986480, 14378368, 17972960, 35945920, 71891840]

約数ペア:

[(1, 71891840), (2, 35945920), (4, 17972960), (5, 14378368), (8, 8986480), (10, 7189184), (16, 4493240), (20, 3594592), (32, 2246620), (40, 1797296), (64, 1123310), (80, 898648), (128, 561655), (160, 449324), (320, 224662), (640, 112331)]