78831220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{6451}}^1$

素因数の和:6520

約数の個数: 48

約数和(自身を含む): 182101248

約数和(自身を除く): 103270028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 3055, 6110, 6451, 12220, 12902, 25804, 32255, 64510, 83863, 129020, 167726, 303197, 335452, 419315, 606394, 838630, 1212788, 1515985, 1677260, 3031970, 3941561, 6063940, 7883122, 15766244, 19707805, 39415610, 78831220]

約数ペア:

[(1, 78831220), (2, 39415610), (4, 19707805), (5, 15766244), (10, 7883122), (13, 6063940), (20, 3941561), (26, 3031970), (47, 1677260), (52, 1515985), (65, 1212788), (94, 838630), (130, 606394), (188, 419315), (235, 335452), (260, 303197), (470, 167726), (611, 129020), (940, 83863), (1222, 64510), (2444, 32255), (3055, 25804), (6110, 12902), (6451, 12220)]