321812920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{443}}^1$

素因数の和:605

約数の個数: 128

約数和(自身を含む): 859299840

約数和(自身を除く): 537486920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 127, 130, 143, 220, 254, 260, 286, 440, 443, 508, 520, 572, 635, 715, 886, 1016, 1144, 1270, 1397, 1430, 1651, 1772, 2215, 2540, 2794, 2860, 3302, 3544, 4430, 4873, 5080, 5588, 5720, 5759, 6604, 6985, 8255, 8860, 9746, 11176, 11518, 13208, 13970, 16510, 17720, 18161, 19492, 23036, 24365, 27940, 28795, 33020, 36322, 38984, 46072, 48730, 55880, 56261, 57590, 63349, 66040, 72644, 90805, 97460, 112522, 115180, 126698, 145288, 181610, 194920, 225044, 230360, 253396, 281305, 316745, 363220, 450088, 506792, 562610, 618871, 633490, 726440, 731393, 1125220, 1237742, 1266980, 1462786, 2250440, 2475484, 2533960, 2925572, 3094355, 3656965, 4950968, 5851144, 6188710, 7313930, 8045323, 12377420, 14627860, 16090646, 24754840, 29255720, 32181292, 40226615, 64362584, 80453230, 160906460, 321812920]

約数ペア:

[(1, 321812920), (2, 160906460), (4, 80453230), (5, 64362584), (8, 40226615), (10, 32181292), (11, 29255720), (13, 24754840), (20, 16090646), (22, 14627860), (26, 12377420), (40, 8045323), (44, 7313930), (52, 6188710), (55, 5851144), (65, 4950968), (88, 3656965), (104, 3094355), (110, 2925572), (127, 2533960), (130, 2475484), (143, 2250440), (220, 1462786), (254, 1266980), (260, 1237742), (286, 1125220), (440, 731393), (443, 726440), (508, 633490), (520, 618871), (572, 562610), (635, 506792), (715, 450088), (886, 363220), (1016, 316745), (1144, 281305), (1270, 253396), (1397, 230360), (1430, 225044), (1651, 194920), (1772, 181610), (2215, 145288), (2540, 126698), (2794, 115180), (2860, 112522), (3302, 97460), (3544, 90805), (4430, 72644), (4873, 66040), (5080, 63349), (5588, 57590), (5720, 56261), (5759, 55880), (6604, 48730), (6985, 46072), (8255, 38984), (8860, 36322), (9746, 33020), (11176, 28795), (11518, 27940), (13208, 24365), (13970, 23036), (16510, 19492), (17720, 18161)]