25731225

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{463}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 52357760

約数和(自身を除く): 26626535

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 39, 45, 57, 65, 75, 95, 117, 171, 195, 225, 247, 285, 325, 463, 475, 585, 741, 855, 975, 1235, 1389, 1425, 2223, 2315, 2925, 3705, 4167, 4275, 6019, 6175, 6945, 8797, 11115, 11575, 18057, 18525, 20835, 26391, 30095, 34725, 43985, 54171, 55575, 79173, 90285, 104175, 114361, 131955, 150475, 219925, 270855, 343083, 395865, 451425, 571805, 659775, 1029249, 1354275, 1715415, 1979325, 2859025, 5146245, 8577075, 25731225]

約数ペア:

[(1, 25731225), (3, 8577075), (5, 5146245), (9, 2859025), (13, 1979325), (15, 1715415), (19, 1354275), (25, 1029249), (39, 659775), (45, 571805), (57, 451425), (65, 395865), (75, 343083), (95, 270855), (117, 219925), (171, 150475), (195, 131955), (225, 114361), (247, 104175), (285, 90285), (325, 79173), (463, 55575), (475, 54171), (585, 43985), (741, 34725), (855, 30095), (975, 26391), (1235, 20835), (1389, 18525), (1425, 18057), (2223, 11575), (2315, 11115), (2925, 8797), (3705, 6945), (4167, 6175), (4275, 6019)]