28037490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 78140160

約数和(自身を除く): 50102670

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 29, 30, 37, 39, 58, 65, 67, 74, 78, 87, 111, 130, 134, 145, 174, 185, 195, 201, 222, 290, 335, 370, 377, 390, 402, 435, 481, 555, 670, 754, 870, 871, 962, 1005, 1073, 1110, 1131, 1443, 1742, 1885, 1943, 2010, 2146, 2262, 2405, 2479, 2613, 2886, 3219, 3770, 3886, 4355, 4810, 4958, 5226, 5365, 5655, 5829, 6438, 7215, 7437, 8710, 9715, 10730, 11310, 11658, 12395, 13065, 13949, 14430, 14874, 16095, 19430, 24790, 25259, 26130, 27898, 29145, 32190, 32227, 37185, 41847, 50518, 58290, 64454, 69745, 71891, 74370, 75777, 83694, 96681, 126295, 139490, 143782, 151554, 161135, 193362, 209235, 215673, 252590, 322270, 359455, 378885, 418470, 431346, 483405, 718910, 757770, 934583, 966810, 1078365, 1869166, 2156730, 2803749, 4672915, 5607498, 9345830, 14018745, 28037490]

約数ペア:

[(1, 28037490), (2, 14018745), (3, 9345830), (5, 5607498), (6, 4672915), (10, 2803749), (13, 2156730), (15, 1869166), (26, 1078365), (29, 966810), (30, 934583), (37, 757770), (39, 718910), (58, 483405), (65, 431346), (67, 418470), (74, 378885), (78, 359455), (87, 322270), (111, 252590), (130, 215673), (134, 209235), (145, 193362), (174, 161135), (185, 151554), (195, 143782), (201, 139490), (222, 126295), (290, 96681), (335, 83694), (370, 75777), (377, 74370), (390, 71891), (402, 69745), (435, 64454), (481, 58290), (555, 50518), (670, 41847), (754, 37185), (870, 32227), (871, 32190), (962, 29145), (1005, 27898), (1073, 26130), (1110, 25259), (1131, 24790), (1443, 19430), (1742, 16095), (1885, 14874), (1943, 14430), (2010, 13949), (2146, 13065), (2262, 12395), (2405, 11658), (2479, 11310), (2613, 10730), (2886, 9715), (3219, 8710), (3770, 7437), (3886, 7215), (4355, 6438), (4810, 5829), (4958, 5655), (5226, 5365)]