20410540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{347}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 45777312

約数和(自身を除く): 25366772

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 173, 340, 346, 347, 692, 694, 865, 1388, 1730, 1735, 2941, 3460, 3470, 5882, 5899, 6940, 11764, 11798, 14705, 23596, 29410, 29495, 58820, 58990, 60031, 117980, 120062, 240124, 300155, 600310, 1020527, 1200620, 2041054, 4082108, 5102635, 10205270, 20410540]

約数ペア:

[(1, 20410540), (2, 10205270), (4, 5102635), (5, 4082108), (10, 2041054), (17, 1200620), (20, 1020527), (34, 600310), (68, 300155), (85, 240124), (170, 120062), (173, 117980), (340, 60031), (346, 58990), (347, 58820), (692, 29495), (694, 29410), (865, 23596), (1388, 14705), (1730, 11798), (1735, 11764), (2941, 6940), (3460, 5899), (3470, 5882)]