70289080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{28807}}^1$

素因数の和:28879

約数の個数: 32

約数和(自身を含む): 160748640

約数和(自身を除く): 90459560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 28807, 57614, 115228, 144035, 230456, 288070, 576140, 1152280, 1757227, 3514454, 7028908, 8786135, 14057816, 17572270, 35144540, 70289080]

約数ペア:

[(1, 70289080), (2, 35144540), (4, 17572270), (5, 14057816), (8, 8786135), (10, 7028908), (20, 3514454), (40, 1757227), (61, 1152280), (122, 576140), (244, 288070), (305, 230456), (488, 144035), (610, 115228), (1220, 57614), (2440, 28807)]