2117290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:199

約数の個数: 48

約数和(自身を含む): 4617000

約数和(自身を除く): 2499710

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 49, 58, 70, 98, 145, 149, 203, 245, 290, 298, 406, 490, 745, 1015, 1043, 1421, 1490, 2030, 2086, 2842, 4321, 5215, 7105, 7301, 8642, 10430, 14210, 14602, 21605, 30247, 36505, 43210, 60494, 73010, 151235, 211729, 302470, 423458, 1058645, 2117290]

約数ペア:

[(1, 2117290), (2, 1058645), (5, 423458), (7, 302470), (10, 211729), (14, 151235), (29, 73010), (35, 60494), (49, 43210), (58, 36505), (70, 30247), (98, 21605), (145, 14602), (149, 14210), (203, 10430), (245, 8642), (290, 7301), (298, 7105), (406, 5215), (490, 4321), (745, 2842), (1015, 2086), (1043, 2030), (1421, 1490)]