18984920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27919}}^1$

素因数の和:27947

約数の個数: 32

約数和(自身を含む): 45230400

約数和(自身を除く): 26245480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27919, 55838, 111676, 139595, 223352, 279190, 474623, 558380, 949246, 1116760, 1898492, 2373115, 3796984, 4746230, 9492460, 18984920]

約数ペア:

[(1, 18984920), (2, 9492460), (4, 4746230), (5, 3796984), (8, 2373115), (10, 1898492), (17, 1116760), (20, 949246), (34, 558380), (40, 474623), (68, 279190), (85, 223352), (136, 139595), (170, 111676), (340, 55838), (680, 27919)]