268390640

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{9781}}^1$

素因数の和:9815

約数の個数: 80

約数和(自身を含む): 727780800

約数和(自身を除く): 459390160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3430, 3920, 5488, 6860, 9781, 13720, 19562, 27440, 39124, 48905, 68467, 78248, 97810, 136934, 156496, 195620, 273868, 342335, 391240, 479269, 547736, 684670, 782480, 958538, 1095472, 1369340, 1917076, 2396345, 2738680, 3354883, 3834152, 4792690, 5477360, 6709766, 7668304, 9585380, 13419532, 16774415, 19170760, 26839064, 33548830, 38341520, 53678128, 67097660, 134195320, 268390640]

約数ペア:

[(1, 268390640), (2, 134195320), (4, 67097660), (5, 53678128), (7, 38341520), (8, 33548830), (10, 26839064), (14, 19170760), (16, 16774415), (20, 13419532), (28, 9585380), (35, 7668304), (40, 6709766), (49, 5477360), (56, 4792690), (70, 3834152), (80, 3354883), (98, 2738680), (112, 2396345), (140, 1917076), (196, 1369340), (245, 1095472), (280, 958538), (343, 782480), (392, 684670), (490, 547736), (560, 479269), (686, 391240), (784, 342335), (980, 273868), (1372, 195620), (1715, 156496), (1960, 136934), (2744, 97810), (3430, 78248), (3920, 68467), (5488, 48905), (6860, 39124), (9781, 27440), (13720, 19562)]