89911780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20717}}^1$

素因数の和:20764

約数の個数: 48

約数和(自身を含む): 222759936

約数和(自身を除く): 132848156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 20717, 41434, 82868, 103585, 145019, 207170, 290038, 414340, 580076, 642227, 725095, 1284454, 1450190, 2568908, 2900380, 3211135, 4495589, 6422270, 8991178, 12844540, 17982356, 22477945, 44955890, 89911780]

約数ペア:

[(1, 89911780), (2, 44955890), (4, 22477945), (5, 17982356), (7, 12844540), (10, 8991178), (14, 6422270), (20, 4495589), (28, 3211135), (31, 2900380), (35, 2568908), (62, 1450190), (70, 1284454), (124, 725095), (140, 642227), (155, 580076), (217, 414340), (310, 290038), (434, 207170), (620, 145019), (868, 103585), (1085, 82868), (2170, 41434), (4340, 20717)]