661254945

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2417}}^1$

素因数の和:2522

約数の個数: 64

約数和(自身を含む): 1208922624

約数和(自身を除く): 547667679

約数列:

[1, 3, 5, 13, 15, 23, 39, 61, 65, 69, 115, 183, 195, 299, 305, 345, 793, 897, 915, 1403, 1495, 2379, 2417, 3965, 4209, 4485, 7015, 7251, 11895, 12085, 18239, 21045, 31421, 36255, 54717, 55591, 91195, 94263, 147437, 157105, 166773, 273585, 277955, 442311, 471315, 722683, 737185, 833865, 1916681, 2168049, 2211555, 3391051, 3613415, 5750043, 9583405, 10173153, 10840245, 16955255, 28750215, 44083663, 50865765, 132250989, 220418315, 661254945]

約数ペア:

[(1, 661254945), (3, 220418315), (5, 132250989), (13, 50865765), (15, 44083663), (23, 28750215), (39, 16955255), (61, 10840245), (65, 10173153), (69, 9583405), (115, 5750043), (183, 3613415), (195, 3391051), (299, 2211555), (305, 2168049), (345, 1916681), (793, 833865), (897, 737185), (915, 722683), (1403, 471315), (1495, 442311), (2379, 277955), (2417, 273585), (3965, 166773), (4209, 157105), (4485, 147437), (7015, 94263), (7251, 91195), (11895, 55591), (12085, 54717), (18239, 36255), (21045, 31421)]