18164840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26713}}^1$

素因数の和:26741

約数の個数: 32

約数和(自身を含む): 43276680

約数和(自身を除く): 25111840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 26713, 53426, 106852, 133565, 213704, 267130, 454121, 534260, 908242, 1068520, 1816484, 2270605, 3632968, 4541210, 9082420, 18164840]

約数ペア:

[(1, 18164840), (2, 9082420), (4, 4541210), (5, 3632968), (8, 2270605), (10, 1816484), (17, 1068520), (20, 908242), (34, 534260), (40, 454121), (68, 267130), (85, 213704), (136, 133565), (170, 106852), (340, 53426), (680, 26713)]