289365880

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{64019}}^1$

素因数の和:64143

約数の個数: 32

約数和(自身を含む): 656845200

約数和(自身を除く): 367479320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 64019, 128038, 256076, 320095, 512152, 640190, 1280380, 2560760, 7234147, 14468294, 28936588, 36170735, 57873176, 72341470, 144682940, 289365880]

約数ペア:

[(1, 289365880), (2, 144682940), (4, 72341470), (5, 57873176), (8, 36170735), (10, 28936588), (20, 14468294), (40, 7234147), (113, 2560760), (226, 1280380), (452, 640190), (565, 512152), (904, 320095), (1130, 256076), (2260, 128038), (4520, 64019)]