28179060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{397}}^1$

素因数の和:442

約数の個数: 144

約数和(自身を含む): 97888896

約数和(自身を除く): 69709836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 169, 182, 195, 210, 260, 273, 338, 364, 390, 397, 420, 455, 507, 546, 676, 780, 794, 845, 910, 1014, 1092, 1183, 1191, 1365, 1588, 1690, 1820, 1985, 2028, 2366, 2382, 2535, 2730, 2779, 3380, 3549, 3970, 4732, 4764, 5070, 5161, 5460, 5558, 5915, 5955, 7098, 7940, 8337, 10140, 10322, 11116, 11830, 11910, 13895, 14196, 15483, 16674, 17745, 20644, 23660, 23820, 25805, 27790, 30966, 33348, 35490, 36127, 41685, 51610, 55580, 61932, 67093, 70980, 72254, 77415, 83370, 103220, 108381, 134186, 144508, 154830, 166740, 180635, 201279, 216762, 268372, 309660, 335465, 361270, 402558, 433524, 469651, 541905, 670930, 722540, 805116, 939302, 1006395, 1083810, 1341860, 1408953, 1878604, 2012790, 2167620, 2348255, 2817906, 4025580, 4696510, 5635812, 7044765, 9393020, 14089530, 28179060]

約数ペア:

[(1, 28179060), (2, 14089530), (3, 9393020), (4, 7044765), (5, 5635812), (6, 4696510), (7, 4025580), (10, 2817906), (12, 2348255), (13, 2167620), (14, 2012790), (15, 1878604), (20, 1408953), (21, 1341860), (26, 1083810), (28, 1006395), (30, 939302), (35, 805116), (39, 722540), (42, 670930), (52, 541905), (60, 469651), (65, 433524), (70, 402558), (78, 361270), (84, 335465), (91, 309660), (105, 268372), (130, 216762), (140, 201279), (156, 180635), (169, 166740), (182, 154830), (195, 144508), (210, 134186), (260, 108381), (273, 103220), (338, 83370), (364, 77415), (390, 72254), (397, 70980), (420, 67093), (455, 61932), (507, 55580), (546, 51610), (676, 41685), (780, 36127), (794, 35490), (845, 33348), (910, 30966), (1014, 27790), (1092, 25805), (1183, 23820), (1191, 23660), (1365, 20644), (1588, 17745), (1690, 16674), (1820, 15483), (1985, 14196), (2028, 13895), (2366, 11910), (2382, 11830), (2535, 11116), (2730, 10322), (2779, 10140), (3380, 8337), (3549, 7940), (3970, 7098), (4732, 5955), (4764, 5915), (5070, 5558), (5161, 5460)]