278318620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{593}}^1\times {\mathrm{757}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 605138688

約数和(自身を除く): 326820068

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 593, 620, 757, 1186, 1514, 2372, 2965, 3028, 3785, 5930, 7570, 11860, 15140, 18383, 23467, 36766, 46934, 73532, 91915, 93868, 117335, 183830, 234670, 367660, 448901, 469340, 897802, 1795604, 2244505, 4489010, 8978020, 13915931, 27831862, 55663724, 69579655, 139159310, 278318620]

約数ペア:

[(1, 278318620), (2, 139159310), (4, 69579655), (5, 55663724), (10, 27831862), (20, 13915931), (31, 8978020), (62, 4489010), (124, 2244505), (155, 1795604), (310, 897802), (593, 469340), (620, 448901), (757, 367660), (1186, 234670), (1514, 183830), (2372, 117335), (2965, 93868), (3028, 91915), (3785, 73532), (5930, 46934), (7570, 36766), (11860, 23467), (15140, 18383)]