28404680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22907}}^1$

素因数の和:22949

約数の個数: 32

約数和(自身を含む): 65975040

約数和(自身を除く): 37570360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 22907, 45814, 91628, 114535, 183256, 229070, 458140, 710117, 916280, 1420234, 2840468, 3550585, 5680936, 7101170, 14202340, 28404680]

約数ペア:

[(1, 28404680), (2, 14202340), (4, 7101170), (5, 5680936), (8, 3550585), (10, 2840468), (20, 1420234), (31, 916280), (40, 710117), (62, 458140), (124, 229070), (155, 183256), (248, 114535), (310, 91628), (620, 45814), (1240, 22907)]