177889725

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1087

約数の個数: 72

約数和(自身を含む): 349104392

約数和(自身を除く): 171214667

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 61, 65, 75, 117, 183, 195, 225, 305, 325, 549, 585, 793, 915, 975, 997, 1525, 2379, 2745, 2925, 2991, 3965, 4575, 4985, 7137, 8973, 11895, 12961, 13725, 14955, 19825, 24925, 35685, 38883, 44865, 59475, 60817, 64805, 74775, 116649, 178425, 182451, 194415, 224325, 304085, 324025, 547353, 583245, 790621, 912255, 972075, 1520425, 2371863, 2736765, 2916225, 3953105, 4561275, 7115589, 11859315, 13683825, 19765525, 35577945, 59296575, 177889725]

約数ペア:

[(1, 177889725), (3, 59296575), (5, 35577945), (9, 19765525), (13, 13683825), (15, 11859315), (25, 7115589), (39, 4561275), (45, 3953105), (61, 2916225), (65, 2736765), (75, 2371863), (117, 1520425), (183, 972075), (195, 912255), (225, 790621), (305, 583245), (325, 547353), (549, 324025), (585, 304085), (793, 224325), (915, 194415), (975, 182451), (997, 178425), (1525, 116649), (2379, 74775), (2745, 64805), (2925, 60817), (2991, 59475), (3965, 44865), (4575, 38883), (4985, 35685), (7137, 24925), (8973, 19825), (11895, 14955), (12961, 13725)]