640428528052

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{8231}}^1\times {\mathrm{67307}}^1$

素因数の和:75576

約数の個数: 36

約数和(自身を含む): 1190716750944

約数和(自身を除く): 550288222892

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 8231, 16462, 32924, 67307, 134614, 139927, 269228, 279854, 559708, 1144219, 2288438, 2378759, 4576876, 4757518, 9515036, 19451723, 38903446, 77806892, 554003917, 1108007834, 2216015668, 9418066589, 18836133178, 37672266356, 160107132013, 320214264026, 640428528052]

約数ペア:

[(1, 640428528052), (2, 320214264026), (4, 160107132013), (17, 37672266356), (34, 18836133178), (68, 9418066589), (289, 2216015668), (578, 1108007834), (1156, 554003917), (8231, 77806892), (16462, 38903446), (32924, 19451723), (67307, 9515036), (134614, 4757518), (139927, 4576876), (269228, 2378759), (279854, 2288438), (559708, 1144219)]