129489640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:515

約数の個数: 128

約数和(自身を含む): 354585600

約数和(自身を除く): 225095960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 37, 40, 56, 58, 70, 74, 116, 140, 145, 148, 185, 203, 232, 259, 280, 290, 296, 370, 406, 431, 518, 580, 740, 812, 862, 1015, 1036, 1073, 1160, 1295, 1480, 1624, 1724, 2030, 2072, 2146, 2155, 2590, 3017, 3448, 4060, 4292, 4310, 5180, 5365, 6034, 7511, 8120, 8584, 8620, 10360, 10730, 12068, 12499, 15022, 15085, 15947, 17240, 21460, 24136, 24998, 30044, 30170, 31894, 37555, 42920, 49996, 60088, 60340, 62495, 63788, 75110, 79735, 87493, 99992, 111629, 120680, 124990, 127576, 150220, 159470, 174986, 223258, 249980, 300440, 318940, 349972, 437465, 446516, 462463, 499960, 558145, 637880, 699944, 874930, 893032, 924926, 1116290, 1749860, 1849852, 2232580, 2312315, 3237241, 3499720, 3699704, 4465160, 4624630, 6474482, 9249260, 12948964, 16186205, 18498520, 25897928, 32372410, 64744820, 129489640]

約数ペア:

[(1, 129489640), (2, 64744820), (4, 32372410), (5, 25897928), (7, 18498520), (8, 16186205), (10, 12948964), (14, 9249260), (20, 6474482), (28, 4624630), (29, 4465160), (35, 3699704), (37, 3499720), (40, 3237241), (56, 2312315), (58, 2232580), (70, 1849852), (74, 1749860), (116, 1116290), (140, 924926), (145, 893032), (148, 874930), (185, 699944), (203, 637880), (232, 558145), (259, 499960), (280, 462463), (290, 446516), (296, 437465), (370, 349972), (406, 318940), (431, 300440), (518, 249980), (580, 223258), (740, 174986), (812, 159470), (862, 150220), (1015, 127576), (1036, 124990), (1073, 120680), (1160, 111629), (1295, 99992), (1480, 87493), (1624, 79735), (1724, 75110), (2030, 63788), (2072, 62495), (2146, 60340), (2155, 60088), (2590, 49996), (3017, 42920), (3448, 37555), (4060, 31894), (4292, 30170), (4310, 30044), (5180, 24998), (5365, 24136), (6034, 21460), (7511, 17240), (8120, 15947), (8584, 15085), (8620, 15022), (10360, 12499), (10730, 12068)]