20643780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{547}}^1$

素因数の和:613

約数の個数: 96

約数和(自身を含む): 62971776

約数和(自身を除く): 42327996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 37, 51, 60, 68, 74, 85, 102, 111, 148, 170, 185, 204, 222, 255, 340, 370, 444, 510, 547, 555, 629, 740, 1020, 1094, 1110, 1258, 1641, 1887, 2188, 2220, 2516, 2735, 3145, 3282, 3774, 5470, 6290, 6564, 7548, 8205, 9299, 9435, 10940, 12580, 16410, 18598, 18870, 20239, 27897, 32820, 37196, 37740, 40478, 46495, 55794, 60717, 80956, 92990, 101195, 111588, 121434, 139485, 185980, 202390, 242868, 278970, 303585, 344063, 404780, 557940, 607170, 688126, 1032189, 1214340, 1376252, 1720315, 2064378, 3440630, 4128756, 5160945, 6881260, 10321890, 20643780]

約数ペア:

[(1, 20643780), (2, 10321890), (3, 6881260), (4, 5160945), (5, 4128756), (6, 3440630), (10, 2064378), (12, 1720315), (15, 1376252), (17, 1214340), (20, 1032189), (30, 688126), (34, 607170), (37, 557940), (51, 404780), (60, 344063), (68, 303585), (74, 278970), (85, 242868), (102, 202390), (111, 185980), (148, 139485), (170, 121434), (185, 111588), (204, 101195), (222, 92990), (255, 80956), (340, 60717), (370, 55794), (444, 46495), (510, 40478), (547, 37740), (555, 37196), (629, 32820), (740, 27897), (1020, 20239), (1094, 18870), (1110, 18598), (1258, 16410), (1641, 12580), (1887, 10940), (2188, 9435), (2220, 9299), (2516, 8205), (2735, 7548), (3145, 6564), (3282, 6290), (3774, 5470)]