42881000

素因数分解:

$2^3\times 5^3\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:471

約数の個数: 64

約数和(自身を含む): 101396880

約数和(自身を除く): 58515880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 137, 200, 250, 274, 313, 500, 548, 626, 685, 1000, 1096, 1252, 1370, 1565, 2504, 2740, 3130, 3425, 5480, 6260, 6850, 7825, 12520, 13700, 15650, 17125, 27400, 31300, 34250, 39125, 42881, 62600, 68500, 78250, 85762, 137000, 156500, 171524, 214405, 313000, 343048, 428810, 857620, 1072025, 1715240, 2144050, 4288100, 5360125, 8576200, 10720250, 21440500, 42881000]

約数ペア:

[(1, 42881000), (2, 21440500), (4, 10720250), (5, 8576200), (8, 5360125), (10, 4288100), (20, 2144050), (25, 1715240), (40, 1072025), (50, 857620), (100, 428810), (125, 343048), (137, 313000), (200, 214405), (250, 171524), (274, 156500), (313, 137000), (500, 85762), (548, 78250), (626, 68500), (685, 62600), (1000, 42881), (1096, 39125), (1252, 34250), (1370, 31300), (1565, 27400), (2504, 17125), (2740, 15650), (3130, 13700), (3425, 12520), (5480, 7825), (6260, 6850)]