208897245

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{25367}}^1$

素因数の和:25442

約数の個数: 32

約数和(自身を含む): 377475840

約数和(自身を除く): 168578595

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 305, 549, 915, 1647, 2745, 8235, 25367, 76101, 126835, 228303, 380505, 684909, 1141515, 1547387, 3424545, 4642161, 7736935, 13926483, 23210805, 41779449, 69632415, 208897245]

約数ペア:

[(1, 208897245), (3, 69632415), (5, 41779449), (9, 23210805), (15, 13926483), (27, 7736935), (45, 4642161), (61, 3424545), (135, 1547387), (183, 1141515), (305, 684909), (549, 380505), (915, 228303), (1647, 126835), (2745, 76101), (8235, 25367)]