20178760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3793}}^1$

素因数の和:3830

約数の個数: 64

約数和(自身を含む): 54633600

約数和(自身を除く): 34454840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3793, 5320, 7586, 15172, 18965, 26551, 30344, 37930, 53102, 72067, 75860, 106204, 132755, 144134, 151720, 212408, 265510, 288268, 360335, 504469, 531020, 576536, 720670, 1008938, 1062040, 1441340, 2017876, 2522345, 2882680, 4035752, 5044690, 10089380, 20178760]

約数ペア:

[(1, 20178760), (2, 10089380), (4, 5044690), (5, 4035752), (7, 2882680), (8, 2522345), (10, 2017876), (14, 1441340), (19, 1062040), (20, 1008938), (28, 720670), (35, 576536), (38, 531020), (40, 504469), (56, 360335), (70, 288268), (76, 265510), (95, 212408), (133, 151720), (140, 144134), (152, 132755), (190, 106204), (266, 75860), (280, 72067), (380, 53102), (532, 37930), (665, 30344), (760, 26551), (1064, 18965), (1330, 15172), (2660, 7586), (3793, 5320)]