21722200

素因数分解:

$2^3\times 5^2\times {\mathrm{313}}^1\times {\mathrm{347}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 50811480

約数和(自身を除く): 29089280

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 313, 347, 626, 694, 1252, 1388, 1565, 1735, 2504, 2776, 3130, 3470, 6260, 6940, 7825, 8675, 12520, 13880, 15650, 17350, 31300, 34700, 62600, 69400, 108611, 217222, 434444, 543055, 868888, 1086110, 2172220, 2715275, 4344440, 5430550, 10861100, 21722200]

約数ペア:

[(1, 21722200), (2, 10861100), (4, 5430550), (5, 4344440), (8, 2715275), (10, 2172220), (20, 1086110), (25, 868888), (40, 543055), (50, 434444), (100, 217222), (200, 108611), (313, 69400), (347, 62600), (626, 34700), (694, 31300), (1252, 17350), (1388, 15650), (1565, 13880), (1735, 12520), (2504, 8675), (2776, 7825), (3130, 6940), (3470, 6260)]