25865775

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 51455040

約数和(自身を除く): 25589265

約数列:

[1, 3, 5, 9, 13, 15, 25, 37, 39, 45, 65, 75, 111, 117, 185, 195, 225, 239, 325, 333, 481, 555, 585, 717, 925, 975, 1195, 1443, 1665, 2151, 2405, 2775, 2925, 3107, 3585, 4329, 5975, 7215, 8325, 8843, 9321, 10755, 12025, 15535, 17925, 21645, 26529, 27963, 36075, 44215, 46605, 53775, 77675, 79587, 108225, 114959, 132645, 139815, 221075, 233025, 344877, 397935, 574795, 663225, 699075, 1034631, 1724385, 1989675, 2873975, 5173155, 8621925, 25865775]

約数ペア:

[(1, 25865775), (3, 8621925), (5, 5173155), (9, 2873975), (13, 1989675), (15, 1724385), (25, 1034631), (37, 699075), (39, 663225), (45, 574795), (65, 397935), (75, 344877), (111, 233025), (117, 221075), (185, 139815), (195, 132645), (225, 114959), (239, 108225), (325, 79587), (333, 77675), (481, 53775), (555, 46605), (585, 44215), (717, 36075), (925, 27963), (975, 26529), (1195, 21645), (1443, 17925), (1665, 15535), (2151, 12025), (2405, 10755), (2775, 9321), (2925, 8843), (3107, 8325), (3585, 7215), (4329, 5975)]