81168890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{8291}}^1$

素因数の和:8398

約数の個数: 32

約数和(自身を含む): 161196480

約数和(自身を除く): 80027590

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 4895, 8291, 9790, 16582, 41455, 82910, 91201, 182402, 456005, 737899, 912010, 1475798, 3689495, 7378990, 8116889, 16233778, 40584445, 81168890]

約数ペア:

[(1, 81168890), (2, 40584445), (5, 16233778), (10, 8116889), (11, 7378990), (22, 3689495), (55, 1475798), (89, 912010), (110, 737899), (178, 456005), (445, 182402), (890, 91201), (979, 82910), (1958, 41455), (4895, 16582), (8291, 9790)]