72721395

素因数分解:

$3^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:375

約数の個数: 56

約数和(自身を含む): 133153632

約数和(自身を除く): 60432237

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 81, 135, 213, 243, 281, 355, 405, 639, 729, 843, 1065, 1215, 1405, 1917, 2529, 3195, 3645, 4215, 5751, 7587, 9585, 12645, 17253, 19951, 22761, 28755, 37935, 51759, 59853, 68283, 86265, 99755, 113805, 179559, 204849, 258795, 299265, 341415, 538677, 897795, 1024245, 1616031, 2693385, 4848093, 8080155, 14544279, 24240465, 72721395]

約数ペア:

[(1, 72721395), (3, 24240465), (5, 14544279), (9, 8080155), (15, 4848093), (27, 2693385), (45, 1616031), (71, 1024245), (81, 897795), (135, 538677), (213, 341415), (243, 299265), (281, 258795), (355, 204849), (405, 179559), (639, 113805), (729, 99755), (843, 86265), (1065, 68283), (1215, 59853), (1405, 51759), (1917, 37935), (2529, 28755), (3195, 22761), (3645, 19951), (4215, 17253), (5751, 12645), (7587, 9585)]