19670820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25219}}^1$

素因数の和:25244

約数の個数: 48

約数和(自身を含む): 59317440

約数和(自身を除く): 39646620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25219, 50438, 75657, 100876, 126095, 151314, 252190, 302628, 327847, 378285, 504380, 655694, 756570, 983541, 1311388, 1513140, 1639235, 1967082, 3278470, 3934164, 4917705, 6556940, 9835410, 19670820]

約数ペア:

[(1, 19670820), (2, 9835410), (3, 6556940), (4, 4917705), (5, 3934164), (6, 3278470), (10, 1967082), (12, 1639235), (13, 1513140), (15, 1311388), (20, 983541), (26, 756570), (30, 655694), (39, 504380), (52, 378285), (60, 327847), (65, 302628), (78, 252190), (130, 151314), (156, 126095), (195, 100876), (260, 75657), (390, 50438), (780, 25219)]