18320022016

素因数分解:

$2^9\times {\mathrm{89}}^1\times {\mathrm{402037}}^1$

素因数の和:402144

約数の個数: 40

約数和(自身を含む): 37015638660

約数和(自身を除く): 18695616644

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 256, 356, 512, 712, 1424, 2848, 5696, 11392, 22784, 45568, 402037, 804074, 1608148, 3216296, 6432592, 12865184, 25730368, 35781293, 51460736, 71562586, 102921472, 143125172, 205842944, 286250344, 572500688, 1145001376, 2290002752, 4580005504, 9160011008, 18320022016]

約数ペア:

[(1, 18320022016), (2, 9160011008), (4, 4580005504), (8, 2290002752), (16, 1145001376), (32, 572500688), (64, 286250344), (89, 205842944), (128, 143125172), (178, 102921472), (256, 71562586), (356, 51460736), (512, 35781293), (712, 25730368), (1424, 12865184), (2848, 6432592), (5696, 3216296), (11392, 1608148), (22784, 804074), (45568, 402037)]