215018775

素因数分解:

$3^2\times 5^2\times {\mathrm{911}}^1\times {\mathrm{1049}}^1$

素因数の和:1976

約数の個数: 36

約数和(自身を含む): 385912800

約数和(自身を除く): 170894025

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 911, 1049, 2733, 3147, 4555, 5245, 8199, 9441, 13665, 15735, 22775, 26225, 40995, 47205, 68325, 78675, 204975, 236025, 955639, 2866917, 4778195, 8600751, 14334585, 23890975, 43003755, 71672925, 215018775]

約数ペア:

[(1, 215018775), (3, 71672925), (5, 43003755), (9, 23890975), (15, 14334585), (25, 8600751), (45, 4778195), (75, 2866917), (225, 955639), (911, 236025), (1049, 204975), (2733, 78675), (3147, 68325), (4555, 47205), (5245, 40995), (8199, 26225), (9441, 22775), (13665, 15735)]