407675420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{21211}}^1$

素因数の和:21282

約数の個数: 36

約数和(自身を含む): 884667672

約数和(自身を除く): 476992252

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1922, 3844, 4805, 9610, 19220, 21211, 42422, 84844, 106055, 212110, 424220, 657541, 1315082, 2630164, 3287705, 6575410, 13150820, 20383771, 40767542, 81535084, 101918855, 203837710, 407675420]

約数ペア:

[(1, 407675420), (2, 203837710), (4, 101918855), (5, 81535084), (10, 40767542), (20, 20383771), (31, 13150820), (62, 6575410), (124, 3287705), (155, 2630164), (310, 1315082), (620, 657541), (961, 424220), (1922, 212110), (3844, 106055), (4805, 84844), (9610, 42422), (19220, 21211)]