78418760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1223}}^1$

素因数の和:1470

約数の個数: 64

約数和(自身を含む): 202694400

約数和(自身を除く): 124275640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 229, 280, 458, 916, 1145, 1223, 1603, 1832, 2290, 2446, 3206, 4580, 4892, 6115, 6412, 8015, 8561, 9160, 9784, 12230, 12824, 16030, 17122, 24460, 32060, 34244, 42805, 48920, 64120, 68488, 85610, 171220, 280067, 342440, 560134, 1120268, 1400335, 1960469, 2240536, 2800670, 3920938, 5601340, 7841876, 9802345, 11202680, 15683752, 19604690, 39209380, 78418760]

約数ペア:

[(1, 78418760), (2, 39209380), (4, 19604690), (5, 15683752), (7, 11202680), (8, 9802345), (10, 7841876), (14, 5601340), (20, 3920938), (28, 2800670), (35, 2240536), (40, 1960469), (56, 1400335), (70, 1120268), (140, 560134), (229, 342440), (280, 280067), (458, 171220), (916, 85610), (1145, 68488), (1223, 64120), (1603, 48920), (1832, 42805), (2290, 34244), (2446, 32060), (3206, 24460), (4580, 17122), (4892, 16030), (6115, 12824), (6412, 12230), (8015, 9784), (8561, 9160)]