28736775

素因数分解:

$3^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:662

約数の個数: 60

約数和(自身を含む): 55634832

約数和(自身を除く): 26898057

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 81, 115, 135, 207, 225, 345, 405, 575, 617, 621, 675, 1035, 1725, 1851, 1863, 2025, 3085, 3105, 5175, 5553, 9255, 9315, 14191, 15425, 15525, 16659, 27765, 42573, 46275, 46575, 49977, 70955, 83295, 127719, 138825, 212865, 249885, 354775, 383157, 416475, 638595, 1064325, 1149471, 1249425, 1915785, 3192975, 5747355, 9578925, 28736775]

約数ペア:

[(1, 28736775), (3, 9578925), (5, 5747355), (9, 3192975), (15, 1915785), (23, 1249425), (25, 1149471), (27, 1064325), (45, 638595), (69, 416475), (75, 383157), (81, 354775), (115, 249885), (135, 212865), (207, 138825), (225, 127719), (345, 83295), (405, 70955), (575, 49977), (617, 46575), (621, 46275), (675, 42573), (1035, 27765), (1725, 16659), (1851, 15525), (1863, 15425), (2025, 14191), (3085, 9315), (3105, 9255), (5175, 5553)]