31249820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 79833600

約数和(自身を除く): 48583780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 43, 58, 70, 86, 116, 140, 145, 172, 179, 203, 215, 290, 301, 358, 406, 430, 580, 602, 716, 812, 860, 895, 1015, 1204, 1247, 1253, 1505, 1790, 2030, 2494, 2506, 3010, 3580, 4060, 4988, 5012, 5191, 6020, 6235, 6265, 7697, 8729, 10382, 12470, 12530, 15394, 17458, 20764, 24940, 25060, 25955, 30788, 34916, 36337, 38485, 43645, 51910, 53879, 72674, 76970, 87290, 103820, 107758, 145348, 153940, 174580, 181685, 215516, 223213, 269395, 363370, 446426, 538790, 726740, 892852, 1077580, 1116065, 1562491, 2232130, 3124982, 4464260, 6249964, 7812455, 15624910, 31249820]

約数ペア:

[(1, 31249820), (2, 15624910), (4, 7812455), (5, 6249964), (7, 4464260), (10, 3124982), (14, 2232130), (20, 1562491), (28, 1116065), (29, 1077580), (35, 892852), (43, 726740), (58, 538790), (70, 446426), (86, 363370), (116, 269395), (140, 223213), (145, 215516), (172, 181685), (179, 174580), (203, 153940), (215, 145348), (290, 107758), (301, 103820), (358, 87290), (406, 76970), (430, 72674), (580, 53879), (602, 51910), (716, 43645), (812, 38485), (860, 36337), (895, 34916), (1015, 30788), (1204, 25955), (1247, 25060), (1253, 24940), (1505, 20764), (1790, 17458), (2030, 15394), (2494, 12530), (2506, 12470), (3010, 10382), (3580, 8729), (4060, 7697), (4988, 6265), (5012, 6235), (5191, 6020)]