19727540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 50561280

約数和(自身を除く): 30833740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 43, 58, 70, 86, 113, 116, 140, 145, 172, 203, 215, 226, 290, 301, 406, 430, 452, 565, 580, 602, 791, 812, 860, 1015, 1130, 1204, 1247, 1505, 1582, 2030, 2260, 2494, 3010, 3164, 3277, 3955, 4060, 4859, 4988, 6020, 6235, 6554, 7910, 8729, 9718, 12470, 13108, 15820, 16385, 17458, 19436, 22939, 24295, 24940, 32770, 34013, 34916, 43645, 45878, 48590, 65540, 68026, 87290, 91756, 97180, 114695, 136052, 140911, 170065, 174580, 229390, 281822, 340130, 458780, 563644, 680260, 704555, 986377, 1409110, 1972754, 2818220, 3945508, 4931885, 9863770, 19727540]

約数ペア:

[(1, 19727540), (2, 9863770), (4, 4931885), (5, 3945508), (7, 2818220), (10, 1972754), (14, 1409110), (20, 986377), (28, 704555), (29, 680260), (35, 563644), (43, 458780), (58, 340130), (70, 281822), (86, 229390), (113, 174580), (116, 170065), (140, 140911), (145, 136052), (172, 114695), (203, 97180), (215, 91756), (226, 87290), (290, 68026), (301, 65540), (406, 48590), (430, 45878), (452, 43645), (565, 34916), (580, 34013), (602, 32770), (791, 24940), (812, 24295), (860, 22939), (1015, 19436), (1130, 17458), (1204, 16385), (1247, 15820), (1505, 13108), (1582, 12470), (2030, 9718), (2260, 8729), (2494, 7910), (3010, 6554), (3164, 6235), (3277, 6020), (3955, 4988), (4060, 4859)]