20121193648

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1539259}}^1$

素因数の和:1539329

約数の個数: 40

約数和(自身を含む): 41991012800

約数和(自身を除く): 21869819152

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1634, 3268, 6536, 13072, 1539259, 3078518, 6157036, 12314072, 24628144, 29245921, 58491842, 66188137, 116983684, 132376274, 233967368, 264752548, 467934736, 529505096, 1059010192, 1257574603, 2515149206, 5030298412, 10060596824, 20121193648]

約数ペア:

[(1, 20121193648), (2, 10060596824), (4, 5030298412), (8, 2515149206), (16, 1257574603), (19, 1059010192), (38, 529505096), (43, 467934736), (76, 264752548), (86, 233967368), (152, 132376274), (172, 116983684), (304, 66188137), (344, 58491842), (688, 29245921), (817, 24628144), (1634, 12314072), (3268, 6157036), (6536, 3078518), (13072, 1539259)]