889510640

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{64271}}^1$

素因数の和:64457

約数の個数: 40

約数和(自身を含む): 2080099008

約数和(自身を除く): 1190588368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2768, 3460, 6920, 13840, 64271, 128542, 257084, 321355, 514168, 642710, 1028336, 1285420, 2570840, 5141680, 11118883, 22237766, 44475532, 55594415, 88951064, 111188830, 177902128, 222377660, 444755320, 889510640]

約数ペア:

[(1, 889510640), (2, 444755320), (4, 222377660), (5, 177902128), (8, 111188830), (10, 88951064), (16, 55594415), (20, 44475532), (40, 22237766), (80, 11118883), (173, 5141680), (346, 2570840), (692, 1285420), (865, 1028336), (1384, 642710), (1730, 514168), (2768, 321355), (3460, 257084), (6920, 128542), (13840, 64271)]