87309440

素因数分解:

$2^7\times 5^1\times {\mathrm{136421}}^1$

素因数の和:136440

約数の個数: 32

約数和(自身を含む): 208725660

約数和(自身を除く): 121416220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 136421, 272842, 545684, 682105, 1091368, 1364210, 2182736, 2728420, 4365472, 5456840, 8730944, 10913680, 17461888, 21827360, 43654720, 87309440]

約数ペア:

[(1, 87309440), (2, 43654720), (4, 21827360), (5, 17461888), (8, 10913680), (10, 8730944), (16, 5456840), (20, 4365472), (32, 2728420), (40, 2182736), (64, 1364210), (80, 1091368), (128, 682105), (160, 545684), (320, 272842), (640, 136421)]