20121016340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4441}}^1\times {\mathrm{11923}}^1$

素因数の和:16392

約数の個数: 48

約数和(自身を含む): 44491782720

約数和(自身を除く): 24370766380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 4441, 8882, 11923, 17764, 22205, 23846, 44410, 47692, 59615, 84379, 88820, 119230, 168758, 226537, 238460, 337516, 421895, 453074, 843790, 906148, 1132685, 1687580, 2265370, 4530740, 52950043, 105900086, 211800172, 264750215, 529500430, 1006050817, 1059000860, 2012101634, 4024203268, 5030254085, 10060508170, 20121016340]

約数ペア:

[(1, 20121016340), (2, 10060508170), (4, 5030254085), (5, 4024203268), (10, 2012101634), (19, 1059000860), (20, 1006050817), (38, 529500430), (76, 264750215), (95, 211800172), (190, 105900086), (380, 52950043), (4441, 4530740), (8882, 2265370), (11923, 1687580), (17764, 1132685), (22205, 906148), (23846, 843790), (44410, 453074), (47692, 421895), (59615, 337516), (84379, 238460), (88820, 226537), (119230, 168758)]