19849540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{739}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 44755200

約数和(自身を除く): 24905660

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 158, 170, 316, 340, 395, 739, 790, 1343, 1478, 1580, 2686, 2956, 3695, 5372, 6715, 7390, 12563, 13430, 14780, 25126, 26860, 50252, 58381, 62815, 116762, 125630, 233524, 251260, 291905, 583810, 992477, 1167620, 1984954, 3969908, 4962385, 9924770, 19849540]

約数ペア:

[(1, 19849540), (2, 9924770), (4, 4962385), (5, 3969908), (10, 1984954), (17, 1167620), (20, 992477), (34, 583810), (68, 291905), (79, 251260), (85, 233524), (158, 125630), (170, 116762), (316, 62815), (340, 58381), (395, 50252), (739, 26860), (790, 25126), (1343, 14780), (1478, 13430), (1580, 12563), (2686, 7390), (2956, 6715), (3695, 5372)]