20009520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27791}}^1$

素因数の和:27810

約数の個数: 60

約数和(自身を含む): 67201056

約数和(自身を除く): 47191536

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27791, 55582, 83373, 111164, 138955, 166746, 222328, 250119, 277910, 333492, 416865, 444656, 500238, 555820, 666984, 833730, 1000476, 1111640, 1250595, 1333968, 1667460, 2000952, 2223280, 2501190, 3334920, 4001904, 5002380, 6669840, 10004760, 20009520]

約数ペア:

[(1, 20009520), (2, 10004760), (3, 6669840), (4, 5002380), (5, 4001904), (6, 3334920), (8, 2501190), (9, 2223280), (10, 2000952), (12, 1667460), (15, 1333968), (16, 1250595), (18, 1111640), (20, 1000476), (24, 833730), (30, 666984), (36, 555820), (40, 500238), (45, 444656), (48, 416865), (60, 333492), (72, 277910), (80, 250119), (90, 222328), (120, 166746), (144, 138955), (180, 111164), (240, 83373), (360, 55582), (720, 27791)]