28636920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:270

約数の個数: 192

約数和(自身を含む): 104176800

約数和(自身を除く): 75539880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 29, 30, 36, 39, 40, 45, 52, 58, 60, 65, 72, 78, 87, 90, 104, 116, 117, 120, 130, 145, 156, 174, 180, 195, 211, 232, 234, 260, 261, 290, 312, 348, 360, 377, 390, 422, 435, 468, 520, 522, 580, 585, 633, 696, 754, 780, 844, 870, 936, 1044, 1055, 1131, 1160, 1170, 1266, 1305, 1508, 1560, 1688, 1740, 1885, 1899, 2088, 2110, 2262, 2340, 2532, 2610, 2743, 3016, 3165, 3393, 3480, 3770, 3798, 4220, 4524, 4680, 5064, 5220, 5486, 5655, 6119, 6330, 6786, 7540, 7596, 8229, 8440, 9048, 9495, 10440, 10972, 11310, 12238, 12660, 13572, 13715, 15080, 15192, 16458, 16965, 18357, 18990, 21944, 22620, 24476, 24687, 25320, 27144, 27430, 30595, 32916, 33930, 36714, 37980, 41145, 45240, 48952, 49374, 54860, 55071, 61190, 65832, 67860, 73428, 75960, 79547, 82290, 91785, 98748, 109720, 110142, 122380, 123435, 135720, 146856, 159094, 164580, 183570, 197496, 220284, 238641, 244760, 246870, 275355, 318188, 329160, 367140, 397735, 440568, 477282, 493740, 550710, 636376, 715923, 734280, 795470, 954564, 987480, 1101420, 1193205, 1431846, 1590940, 1909128, 2202840, 2386410, 2863692, 3181880, 3579615, 4772820, 5727384, 7159230, 9545640, 14318460, 28636920]

約数ペア:

[(1, 28636920), (2, 14318460), (3, 9545640), (4, 7159230), (5, 5727384), (6, 4772820), (8, 3579615), (9, 3181880), (10, 2863692), (12, 2386410), (13, 2202840), (15, 1909128), (18, 1590940), (20, 1431846), (24, 1193205), (26, 1101420), (29, 987480), (30, 954564), (36, 795470), (39, 734280), (40, 715923), (45, 636376), (52, 550710), (58, 493740), (60, 477282), (65, 440568), (72, 397735), (78, 367140), (87, 329160), (90, 318188), (104, 275355), (116, 246870), (117, 244760), (120, 238641), (130, 220284), (145, 197496), (156, 183570), (174, 164580), (180, 159094), (195, 146856), (211, 135720), (232, 123435), (234, 122380), (260, 110142), (261, 109720), (290, 98748), (312, 91785), (348, 82290), (360, 79547), (377, 75960), (390, 73428), (422, 67860), (435, 65832), (468, 61190), (520, 55071), (522, 54860), (580, 49374), (585, 48952), (633, 45240), (696, 41145), (754, 37980), (780, 36714), (844, 33930), (870, 32916), (936, 30595), (1044, 27430), (1055, 27144), (1131, 25320), (1160, 24687), (1170, 24476), (1266, 22620), (1305, 21944), (1508, 18990), (1560, 18357), (1688, 16965), (1740, 16458), (1885, 15192), (1899, 15080), (2088, 13715), (2110, 13572), (2262, 12660), (2340, 12238), (2532, 11310), (2610, 10972), (2743, 10440), (3016, 9495), (3165, 9048), (3393, 8440), (3480, 8229), (3770, 7596), (3798, 7540), (4220, 6786), (4524, 6330), (4680, 6119), (5064, 5655), (5220, 5486)]