217062620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4931}}^1$

素因数の和:5042

約数の個数: 48

約数和(自身を含む): 477259776

約数和(自身を除く): 260197156

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 1420, 2201, 4402, 4931, 8804, 9862, 11005, 19724, 22010, 24655, 44020, 49310, 98620, 152861, 305722, 350101, 611444, 700202, 764305, 1400404, 1528610, 1750505, 3057220, 3501010, 7002020, 10853131, 21706262, 43412524, 54265655, 108531310, 217062620]

約数ペア:

[(1, 217062620), (2, 108531310), (4, 54265655), (5, 43412524), (10, 21706262), (20, 10853131), (31, 7002020), (62, 3501010), (71, 3057220), (124, 1750505), (142, 1528610), (155, 1400404), (284, 764305), (310, 700202), (355, 611444), (620, 350101), (710, 305722), (1420, 152861), (2201, 98620), (4402, 49310), (4931, 44020), (8804, 24655), (9862, 22010), (11005, 19724)]