20066000

素因数分解:

$2^4\times 5^3\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:229

約数の個数: 80

約数和(自身を含む): 49520640

約数和(自身を除く): 29454640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 125, 127, 158, 200, 250, 254, 316, 395, 400, 500, 508, 632, 635, 790, 1000, 1016, 1264, 1270, 1580, 1975, 2000, 2032, 2540, 3160, 3175, 3950, 5080, 6320, 6350, 7900, 9875, 10033, 10160, 12700, 15800, 15875, 19750, 20066, 25400, 31600, 31750, 39500, 40132, 50165, 50800, 63500, 79000, 80264, 100330, 127000, 158000, 160528, 200660, 250825, 254000, 401320, 501650, 802640, 1003300, 1254125, 2006600, 2508250, 4013200, 5016500, 10033000, 20066000]

約数ペア:

[(1, 20066000), (2, 10033000), (4, 5016500), (5, 4013200), (8, 2508250), (10, 2006600), (16, 1254125), (20, 1003300), (25, 802640), (40, 501650), (50, 401320), (79, 254000), (80, 250825), (100, 200660), (125, 160528), (127, 158000), (158, 127000), (200, 100330), (250, 80264), (254, 79000), (316, 63500), (395, 50800), (400, 50165), (500, 40132), (508, 39500), (632, 31750), (635, 31600), (790, 25400), (1000, 20066), (1016, 19750), (1264, 15875), (1270, 15800), (1580, 12700), (1975, 10160), (2000, 10033), (2032, 9875), (2540, 7900), (3160, 6350), (3175, 6320), (3950, 5080)]