19558760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1297}}^1$

素因数の和:1350

約数の個数: 64

約数和(自身を含む): 49064400

約数和(自身を除く): 29505640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1160, 1297, 1508, 1885, 2594, 3016, 3770, 5188, 6485, 7540, 10376, 12970, 15080, 16861, 25940, 33722, 37613, 51880, 67444, 75226, 84305, 134888, 150452, 168610, 188065, 300904, 337220, 376130, 488969, 674440, 752260, 977938, 1504520, 1955876, 2444845, 3911752, 4889690, 9779380, 19558760]

約数ペア:

[(1, 19558760), (2, 9779380), (4, 4889690), (5, 3911752), (8, 2444845), (10, 1955876), (13, 1504520), (20, 977938), (26, 752260), (29, 674440), (40, 488969), (52, 376130), (58, 337220), (65, 300904), (104, 188065), (116, 168610), (130, 150452), (145, 134888), (232, 84305), (260, 75226), (290, 67444), (377, 51880), (520, 37613), (580, 33722), (754, 25940), (1160, 16861), (1297, 15080), (1508, 12970), (1885, 10376), (2594, 7540), (3016, 6485), (3770, 5188)]