13217840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9719}}^1$

素因数の和:9749

約数の個数: 40

約数和(自身を含む): 32542560

約数和(自身を除く): 19324720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 9719, 19438, 38876, 48595, 77752, 97190, 155504, 165223, 194380, 330446, 388760, 660892, 777520, 826115, 1321784, 1652230, 2643568, 3304460, 6608920, 13217840]

約数ペア:

[(1, 13217840), (2, 6608920), (4, 3304460), (5, 2643568), (8, 1652230), (10, 1321784), (16, 826115), (17, 777520), (20, 660892), (34, 388760), (40, 330446), (68, 194380), (80, 165223), (85, 155504), (136, 97190), (170, 77752), (272, 48595), (340, 38876), (680, 19438), (1360, 9719)]