20567980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{733}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 45872064

約数和(自身を除く): 25304084

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 115, 122, 230, 244, 305, 460, 610, 733, 1220, 1403, 1466, 2806, 2932, 3665, 5612, 7015, 7330, 14030, 14660, 16859, 28060, 33718, 44713, 67436, 84295, 89426, 168590, 178852, 223565, 337180, 447130, 894260, 1028399, 2056798, 4113596, 5141995, 10283990, 20567980]

約数ペア:

[(1, 20567980), (2, 10283990), (4, 5141995), (5, 4113596), (10, 2056798), (20, 1028399), (23, 894260), (46, 447130), (61, 337180), (92, 223565), (115, 178852), (122, 168590), (230, 89426), (244, 84295), (305, 67436), (460, 44713), (610, 33718), (733, 28060), (1220, 16859), (1403, 14660), (1466, 14030), (2806, 7330), (2932, 7015), (3665, 5612)]