165403940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{10429}}^1$

素因数の和:10512

約数の個数: 48

約数和(自身を含む): 380236080

約数和(自身を除く): 214832140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 7930, 10429, 15860, 20858, 41716, 52145, 104290, 135577, 208580, 271154, 542308, 636169, 677885, 1272338, 1355770, 2544676, 2711540, 3180845, 6361690, 8270197, 12723380, 16540394, 33080788, 41350985, 82701970, 165403940]

約数ペア:

[(1, 165403940), (2, 82701970), (4, 41350985), (5, 33080788), (10, 16540394), (13, 12723380), (20, 8270197), (26, 6361690), (52, 3180845), (61, 2711540), (65, 2544676), (122, 1355770), (130, 1272338), (244, 677885), (260, 636169), (305, 542308), (610, 271154), (793, 208580), (1220, 135577), (1586, 104290), (3172, 52145), (3965, 41716), (7930, 20858), (10429, 15860)]