257811996

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{599}}^1$

素因数の和:739

約数の個数: 96

約数和(自身を含む): 677376000

約数和(自身を除く): 419564004

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 89, 93, 124, 156, 178, 186, 267, 356, 372, 403, 534, 599, 806, 1068, 1157, 1198, 1209, 1612, 1797, 2314, 2396, 2418, 2759, 3471, 3594, 4628, 4836, 5518, 6942, 7188, 7787, 8277, 11036, 13884, 15574, 16554, 18569, 23361, 31148, 33108, 35867, 37138, 46722, 53311, 55707, 71734, 74276, 93444, 106622, 107601, 111414, 143468, 159933, 213244, 215202, 222828, 241397, 319866, 430404, 482794, 639732, 693043, 724191, 965588, 1386086, 1448382, 1652641, 2079129, 2772172, 2896764, 3305282, 4158258, 4957923, 6610564, 8316516, 9915846, 19831692, 21484333, 42968666, 64452999, 85937332, 128905998, 257811996]

約数ペア:

[(1, 257811996), (2, 128905998), (3, 85937332), (4, 64452999), (6, 42968666), (12, 21484333), (13, 19831692), (26, 9915846), (31, 8316516), (39, 6610564), (52, 4957923), (62, 4158258), (78, 3305282), (89, 2896764), (93, 2772172), (124, 2079129), (156, 1652641), (178, 1448382), (186, 1386086), (267, 965588), (356, 724191), (372, 693043), (403, 639732), (534, 482794), (599, 430404), (806, 319866), (1068, 241397), (1157, 222828), (1198, 215202), (1209, 213244), (1612, 159933), (1797, 143468), (2314, 111414), (2396, 107601), (2418, 106622), (2759, 93444), (3471, 74276), (3594, 71734), (4628, 55707), (4836, 53311), (5518, 46722), (6942, 37138), (7188, 35867), (7787, 33108), (8277, 31148), (11036, 23361), (13884, 18569), (15574, 16554)]