257806952

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 532224000

約数和(自身を除く): 274417048

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 131, 149, 254, 262, 298, 508, 524, 596, 1016, 1048, 1192, 1651, 1703, 1937, 3302, 3406, 3874, 6604, 6812, 7748, 13208, 13624, 15496, 16637, 18923, 19519, 33274, 37846, 39038, 66548, 75692, 78076, 133096, 151384, 156152, 216281, 245999, 253747, 432562, 491998, 507494, 865124, 983996, 1014988, 1730248, 1967992, 2029976, 2478913, 4957826, 9915652, 19831304, 32225869, 64451738, 128903476, 257806952]

約数ペア:

[(1, 257806952), (2, 128903476), (4, 64451738), (8, 32225869), (13, 19831304), (26, 9915652), (52, 4957826), (104, 2478913), (127, 2029976), (131, 1967992), (149, 1730248), (254, 1014988), (262, 983996), (298, 865124), (508, 507494), (524, 491998), (596, 432562), (1016, 253747), (1048, 245999), (1192, 216281), (1651, 156152), (1703, 151384), (1937, 133096), (3302, 78076), (3406, 75692), (3874, 66548), (6604, 39038), (6812, 37846), (7748, 33274), (13208, 19519), (13624, 18923), (15496, 16637)]