28456540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 72737280

約数和(自身を除く): 44280740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 43, 58, 70, 86, 116, 140, 145, 163, 172, 203, 215, 290, 301, 326, 406, 430, 580, 602, 652, 812, 815, 860, 1015, 1141, 1204, 1247, 1505, 1630, 2030, 2282, 2494, 3010, 3260, 4060, 4564, 4727, 4988, 5705, 6020, 6235, 7009, 8729, 9454, 11410, 12470, 14018, 17458, 18908, 22820, 23635, 24940, 28036, 33089, 34916, 35045, 43645, 47270, 49063, 66178, 70090, 87290, 94540, 98126, 132356, 140180, 165445, 174580, 196252, 203261, 245315, 330890, 406522, 490630, 661780, 813044, 981260, 1016305, 1422827, 2032610, 2845654, 4065220, 5691308, 7114135, 14228270, 28456540]

約数ペア:

[(1, 28456540), (2, 14228270), (4, 7114135), (5, 5691308), (7, 4065220), (10, 2845654), (14, 2032610), (20, 1422827), (28, 1016305), (29, 981260), (35, 813044), (43, 661780), (58, 490630), (70, 406522), (86, 330890), (116, 245315), (140, 203261), (145, 196252), (163, 174580), (172, 165445), (203, 140180), (215, 132356), (290, 98126), (301, 94540), (326, 87290), (406, 70090), (430, 66178), (580, 49063), (602, 47270), (652, 43645), (812, 35045), (815, 34916), (860, 33089), (1015, 28036), (1141, 24940), (1204, 23635), (1247, 22820), (1505, 18908), (1630, 17458), (2030, 14018), (2282, 12470), (2494, 11410), (3010, 9454), (3260, 8729), (4060, 7009), (4564, 6235), (4727, 6020), (4988, 5705)]