13303720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 31395600

約数和(自身を除く): 18091880

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 89, 101, 148, 178, 185, 202, 296, 356, 370, 404, 445, 505, 712, 740, 808, 890, 1010, 1480, 1780, 2020, 3293, 3560, 3737, 4040, 6586, 7474, 8989, 13172, 14948, 16465, 17978, 18685, 26344, 29896, 32930, 35956, 37370, 44945, 65860, 71912, 74740, 89890, 131720, 149480, 179780, 332593, 359560, 665186, 1330372, 1662965, 2660744, 3325930, 6651860, 13303720]

約数ペア:

[(1, 13303720), (2, 6651860), (4, 3325930), (5, 2660744), (8, 1662965), (10, 1330372), (20, 665186), (37, 359560), (40, 332593), (74, 179780), (89, 149480), (101, 131720), (148, 89890), (178, 74740), (185, 71912), (202, 65860), (296, 44945), (356, 37370), (370, 35956), (404, 32930), (445, 29896), (505, 26344), (712, 18685), (740, 17978), (808, 16465), (890, 14948), (1010, 13172), (1480, 8989), (1780, 7474), (2020, 6586), (3293, 4040), (3560, 3737)]