388021310

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1\times {\mathrm{971}}^1$

素因数の和:1516

約数の個数: 32

約数和(自身を含む): 708588000

約数和(自身を除く): 320566690

約数列:

[1, 2, 5, 10, 89, 178, 445, 449, 890, 898, 971, 1942, 2245, 4490, 4855, 9710, 39961, 79922, 86419, 172838, 199805, 399610, 432095, 435979, 864190, 871958, 2179895, 4359790, 38802131, 77604262, 194010655, 388021310]

約数ペア:

[(1, 388021310), (2, 194010655), (5, 77604262), (10, 38802131), (89, 4359790), (178, 2179895), (445, 871958), (449, 864190), (890, 435979), (898, 432095), (971, 399610), (1942, 199805), (2245, 172838), (4490, 86419), (4855, 79922), (9710, 39961)]