64984540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{11243}}^1$

素因数の和:11286

約数の個数: 36

約数和(自身を含む): 144980136

約数和(自身を除く): 79995596

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 11243, 22486, 44972, 56215, 112430, 191131, 224860, 382262, 764524, 955655, 1911310, 3249227, 3822620, 6498454, 12996908, 16246135, 32492270, 64984540]

約数ペア:

[(1, 64984540), (2, 32492270), (4, 16246135), (5, 12996908), (10, 6498454), (17, 3822620), (20, 3249227), (34, 1911310), (68, 955655), (85, 764524), (170, 382262), (289, 224860), (340, 191131), (578, 112430), (1156, 56215), (1445, 44972), (2890, 22486), (5780, 11243)]