19958340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1151}}^1$

素因数の和:1197

約数の個数: 72

約数和(自身を含む): 59415552

約数和(自身を除く): 39457212

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 289, 340, 510, 578, 867, 1020, 1151, 1156, 1445, 1734, 2302, 2890, 3453, 3468, 4335, 4604, 5755, 5780, 6906, 8670, 11510, 13812, 17265, 17340, 19567, 23020, 34530, 39134, 58701, 69060, 78268, 97835, 117402, 195670, 234804, 293505, 332639, 391340, 587010, 665278, 997917, 1174020, 1330556, 1663195, 1995834, 3326390, 3991668, 4989585, 6652780, 9979170, 19958340]

約数ペア:

[(1, 19958340), (2, 9979170), (3, 6652780), (4, 4989585), (5, 3991668), (6, 3326390), (10, 1995834), (12, 1663195), (15, 1330556), (17, 1174020), (20, 997917), (30, 665278), (34, 587010), (51, 391340), (60, 332639), (68, 293505), (85, 234804), (102, 195670), (170, 117402), (204, 97835), (255, 78268), (289, 69060), (340, 58701), (510, 39134), (578, 34530), (867, 23020), (1020, 19567), (1151, 17340), (1156, 17265), (1445, 13812), (1734, 11510), (2302, 8670), (2890, 6906), (3453, 5780), (3468, 5755), (4335, 4604)]