19817940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 58222080

約数和(自身を除く): 38404140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 79, 111, 113, 148, 158, 185, 222, 226, 237, 316, 339, 370, 395, 444, 452, 474, 555, 565, 678, 740, 790, 948, 1110, 1130, 1185, 1356, 1580, 1695, 2220, 2260, 2370, 2923, 3390, 4181, 4740, 5846, 6780, 8362, 8769, 8927, 11692, 12543, 14615, 16724, 17538, 17854, 20905, 25086, 26781, 29230, 35076, 35708, 41810, 43845, 44635, 50172, 53562, 58460, 62715, 83620, 87690, 89270, 107124, 125430, 133905, 175380, 178540, 250860, 267810, 330299, 535620, 660598, 990897, 1321196, 1651495, 1981794, 3302990, 3963588, 4954485, 6605980, 9908970, 19817940]

約数ペア:

[(1, 19817940), (2, 9908970), (3, 6605980), (4, 4954485), (5, 3963588), (6, 3302990), (10, 1981794), (12, 1651495), (15, 1321196), (20, 990897), (30, 660598), (37, 535620), (60, 330299), (74, 267810), (79, 250860), (111, 178540), (113, 175380), (148, 133905), (158, 125430), (185, 107124), (222, 89270), (226, 87690), (237, 83620), (316, 62715), (339, 58460), (370, 53562), (395, 50172), (444, 44635), (452, 43845), (474, 41810), (555, 35708), (565, 35076), (678, 29230), (740, 26781), (790, 25086), (948, 20905), (1110, 17854), (1130, 17538), (1185, 16724), (1356, 14615), (1580, 12543), (1695, 11692), (2220, 8927), (2260, 8769), (2370, 8362), (2923, 6780), (3390, 5846), (4181, 4740)]