28331342920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{1861}}^1$

素因数の和:2135

約数の個数: 128

約数和(自身を含む): 66892573440

約数和(自身を除く): 38561230520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 167, 172, 212, 215, 265, 334, 344, 424, 430, 530, 668, 835, 860, 1060, 1336, 1670, 1720, 1861, 2120, 2279, 3340, 3722, 4558, 6680, 7181, 7444, 8851, 9116, 9305, 11395, 14362, 14888, 17702, 18232, 18610, 22790, 28724, 35404, 35905, 37220, 44255, 45580, 57448, 70808, 71810, 74440, 80023, 88510, 91160, 98633, 143620, 160046, 177020, 197266, 287240, 310787, 320092, 354040, 380593, 394532, 400115, 493165, 621574, 640184, 761186, 789064, 800230, 986330, 1243148, 1522372, 1553935, 1600460, 1902965, 1972660, 2486296, 3044744, 3107870, 3200920, 3805930, 3945320, 4241219, 6215740, 7611860, 8482438, 12431480, 13363841, 15223720, 16471711, 16964876, 21206095, 26727682, 32943422, 33929752, 42412190, 53455364, 65886844, 66819205, 82358555, 84824380, 106910728, 131773688, 133638410, 164717110, 169648760, 267276820, 329434220, 534553640, 658868440, 708283573, 1416567146, 2833134292, 3541417865, 5666268584, 7082835730, 14165671460, 28331342920]

約数ペア:

[(1, 28331342920), (2, 14165671460), (4, 7082835730), (5, 5666268584), (8, 3541417865), (10, 2833134292), (20, 1416567146), (40, 708283573), (43, 658868440), (53, 534553640), (86, 329434220), (106, 267276820), (167, 169648760), (172, 164717110), (212, 133638410), (215, 131773688), (265, 106910728), (334, 84824380), (344, 82358555), (424, 66819205), (430, 65886844), (530, 53455364), (668, 42412190), (835, 33929752), (860, 32943422), (1060, 26727682), (1336, 21206095), (1670, 16964876), (1720, 16471711), (1861, 15223720), (2120, 13363841), (2279, 12431480), (3340, 8482438), (3722, 7611860), (4558, 6215740), (6680, 4241219), (7181, 3945320), (7444, 3805930), (8851, 3200920), (9116, 3107870), (9305, 3044744), (11395, 2486296), (14362, 1972660), (14888, 1902965), (17702, 1600460), (18232, 1553935), (18610, 1522372), (22790, 1243148), (28724, 986330), (35404, 800230), (35905, 789064), (37220, 761186), (44255, 640184), (45580, 621574), (57448, 493165), (70808, 400115), (71810, 394532), (74440, 380593), (80023, 354040), (88510, 320092), (91160, 310787), (98633, 287240), (143620, 197266), (160046, 177020)]