64791220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 152643960

約数和(自身を除く): 87852740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 169, 260, 290, 338, 377, 580, 661, 676, 754, 845, 1322, 1508, 1690, 1885, 2644, 3305, 3380, 3770, 4901, 6610, 7540, 8593, 9802, 13220, 17186, 19169, 19604, 24505, 34372, 38338, 42965, 49010, 76676, 85930, 95845, 98020, 111709, 171860, 191690, 223418, 249197, 383380, 446836, 498394, 558545, 996788, 1117090, 1245985, 2234180, 2491970, 3239561, 4983940, 6479122, 12958244, 16197805, 32395610, 64791220]

約数ペア:

[(1, 64791220), (2, 32395610), (4, 16197805), (5, 12958244), (10, 6479122), (13, 4983940), (20, 3239561), (26, 2491970), (29, 2234180), (52, 1245985), (58, 1117090), (65, 996788), (116, 558545), (130, 498394), (145, 446836), (169, 383380), (260, 249197), (290, 223418), (338, 191690), (377, 171860), (580, 111709), (661, 98020), (676, 95845), (754, 85930), (845, 76676), (1322, 49010), (1508, 42965), (1690, 38338), (1885, 34372), (2644, 24505), (3305, 19604), (3380, 19169), (3770, 17186), (4901, 13220), (6610, 9802), (7540, 8593)]