257686260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10657}}^1$

素因数の和:10713

約数の個数: 96

約数和(自身を含む): 802163712

約数和(自身を除く): 544477452

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 930, 1209, 1612, 1860, 2015, 2418, 4030, 4836, 6045, 8060, 10657, 12090, 21314, 24180, 31971, 42628, 53285, 63942, 106570, 127884, 138541, 159855, 213140, 277082, 319710, 330367, 415623, 554164, 639420, 660734, 692705, 831246, 991101, 1321468, 1385410, 1651835, 1662492, 1982202, 2078115, 2770820, 3303670, 3964404, 4156230, 4294771, 4955505, 6607340, 8312460, 8589542, 9911010, 12884313, 17179084, 19822020, 21473855, 25768626, 42947710, 51537252, 64421565, 85895420, 128843130, 257686260]

約数ペア:

[(1, 257686260), (2, 128843130), (3, 85895420), (4, 64421565), (5, 51537252), (6, 42947710), (10, 25768626), (12, 21473855), (13, 19822020), (15, 17179084), (20, 12884313), (26, 9911010), (30, 8589542), (31, 8312460), (39, 6607340), (52, 4955505), (60, 4294771), (62, 4156230), (65, 3964404), (78, 3303670), (93, 2770820), (124, 2078115), (130, 1982202), (155, 1662492), (156, 1651835), (186, 1385410), (195, 1321468), (260, 991101), (310, 831246), (372, 692705), (390, 660734), (403, 639420), (465, 554164), (620, 415623), (780, 330367), (806, 319710), (930, 277082), (1209, 213140), (1612, 159855), (1860, 138541), (2015, 127884), (2418, 106570), (4030, 63942), (4836, 53285), (6045, 42628), (8060, 31971), (10657, 24180), (12090, 21314)]