207880985

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 284557680

約数和(自身を除く): 76676695

約数列:

[1, 5, 13, 37, 61, 65, 109, 169, 185, 305, 481, 545, 793, 845, 1417, 2257, 2405, 3965, 4033, 6253, 6649, 7085, 10309, 11285, 18421, 20165, 29341, 31265, 33245, 51545, 52429, 86437, 92105, 146705, 246013, 262145, 381433, 432185, 681577, 1123681, 1230065, 1907165, 3198169, 3407885, 5618405, 15990845, 41576197, 207880985]

約数ペア:

[(1, 207880985), (5, 41576197), (13, 15990845), (37, 5618405), (61, 3407885), (65, 3198169), (109, 1907165), (169, 1230065), (185, 1123681), (305, 681577), (481, 432185), (545, 381433), (793, 262145), (845, 246013), (1417, 146705), (2257, 92105), (2405, 86437), (3965, 52429), (4033, 51545), (6253, 33245), (6649, 31265), (7085, 29341), (10309, 20165), (11285, 18421)]