278320808

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:366

約数の個数: 64

約数和(自身を含む): 554409360

約数和(自身を除く): 276088552

約数列:

[1, 2, 4, 8, 37, 53, 74, 106, 113, 148, 157, 212, 226, 296, 314, 424, 452, 628, 904, 1256, 1961, 3922, 4181, 5809, 5989, 7844, 8321, 8362, 11618, 11978, 15688, 16642, 16724, 17741, 23236, 23956, 33284, 33448, 35482, 46472, 47912, 66568, 70964, 141928, 221593, 307877, 443186, 615754, 656417, 886372, 940273, 1231508, 1312834, 1772744, 1880546, 2463016, 2625668, 3761092, 5251336, 7522184, 34790101, 69580202, 139160404, 278320808]

約数ペア:

[(1, 278320808), (2, 139160404), (4, 69580202), (8, 34790101), (37, 7522184), (53, 5251336), (74, 3761092), (106, 2625668), (113, 2463016), (148, 1880546), (157, 1772744), (212, 1312834), (226, 1231508), (296, 940273), (314, 886372), (424, 656417), (452, 615754), (628, 443186), (904, 307877), (1256, 221593), (1961, 141928), (3922, 70964), (4181, 66568), (5809, 47912), (5989, 46472), (7844, 35482), (8321, 33448), (8362, 33284), (11618, 23956), (11978, 23236), (15688, 17741), (16642, 16724)]