40816920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:397

約数の個数: 128

約数和(自身を含む): 130507200

約数和(自身を除く): 89690280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 37, 40, 58, 60, 74, 87, 111, 116, 120, 145, 148, 174, 185, 222, 232, 290, 296, 317, 348, 370, 435, 444, 555, 580, 634, 696, 740, 870, 888, 951, 1073, 1110, 1160, 1268, 1480, 1585, 1740, 1902, 2146, 2220, 2536, 3170, 3219, 3480, 3804, 4292, 4440, 4755, 5365, 6340, 6438, 7608, 8584, 9193, 9510, 10730, 11729, 12680, 12876, 16095, 18386, 19020, 21460, 23458, 25752, 27579, 32190, 35187, 36772, 38040, 42920, 45965, 46916, 55158, 58645, 64380, 70374, 73544, 91930, 93832, 110316, 117290, 128760, 137895, 140748, 175935, 183860, 220632, 234580, 275790, 281496, 340141, 351870, 367720, 469160, 551580, 680282, 703740, 1020423, 1103160, 1360564, 1407480, 1700705, 2040846, 2721128, 3401410, 4081692, 5102115, 6802820, 8163384, 10204230, 13605640, 20408460, 40816920]

約数ペア:

[(1, 40816920), (2, 20408460), (3, 13605640), (4, 10204230), (5, 8163384), (6, 6802820), (8, 5102115), (10, 4081692), (12, 3401410), (15, 2721128), (20, 2040846), (24, 1700705), (29, 1407480), (30, 1360564), (37, 1103160), (40, 1020423), (58, 703740), (60, 680282), (74, 551580), (87, 469160), (111, 367720), (116, 351870), (120, 340141), (145, 281496), (148, 275790), (174, 234580), (185, 220632), (222, 183860), (232, 175935), (290, 140748), (296, 137895), (317, 128760), (348, 117290), (370, 110316), (435, 93832), (444, 91930), (555, 73544), (580, 70374), (634, 64380), (696, 58645), (740, 55158), (870, 46916), (888, 45965), (951, 42920), (1073, 38040), (1110, 36772), (1160, 35187), (1268, 32190), (1480, 27579), (1585, 25752), (1740, 23458), (1902, 21460), (2146, 19020), (2220, 18386), (2536, 16095), (3170, 12876), (3219, 12680), (3480, 11729), (3804, 10730), (4292, 9510), (4440, 9193), (4755, 8584), (5365, 7608), (6340, 6438)]