81797690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{1669}}^1$

素因数の和:1731

約数の個数: 48

約数和(自身を含む): 165029400

約数和(自身を除く): 83231710

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 169, 290, 338, 377, 754, 845, 1669, 1690, 1885, 3338, 3770, 4901, 8345, 9802, 16690, 21697, 24505, 43394, 48401, 49010, 96802, 108485, 216970, 242005, 282061, 484010, 564122, 629213, 1258426, 1410305, 2820610, 3146065, 6292130, 8179769, 16359538, 40898845, 81797690]

約数ペア:

[(1, 81797690), (2, 40898845), (5, 16359538), (10, 8179769), (13, 6292130), (26, 3146065), (29, 2820610), (58, 1410305), (65, 1258426), (130, 629213), (145, 564122), (169, 484010), (290, 282061), (338, 242005), (377, 216970), (754, 108485), (845, 96802), (1669, 49010), (1690, 48401), (1885, 43394), (3338, 24505), (3770, 21697), (4901, 16690), (8345, 9802)]