71660620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{311}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 155203776

約数和(自身を除く): 83543156

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 281, 311, 410, 562, 622, 820, 1124, 1244, 1405, 1555, 2810, 3110, 5620, 6220, 11521, 12751, 23042, 25502, 46084, 51004, 57605, 63755, 87391, 115210, 127510, 174782, 230420, 255020, 349564, 436955, 873910, 1747820, 3583031, 7166062, 14332124, 17915155, 35830310, 71660620]

約数ペア:

[(1, 71660620), (2, 35830310), (4, 17915155), (5, 14332124), (10, 7166062), (20, 3583031), (41, 1747820), (82, 873910), (164, 436955), (205, 349564), (281, 255020), (311, 230420), (410, 174782), (562, 127510), (622, 115210), (820, 87391), (1124, 63755), (1244, 57605), (1405, 51004), (1555, 46084), (2810, 25502), (3110, 23042), (5620, 12751), (6220, 11521)]