1298159980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{433}}^1\times {\mathrm{887}}^1$

素因数の和:1355

約数の個数: 72

約数和(自身を含む): 2962122912

約数和(自身を除く): 1663962932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 433, 676, 845, 866, 887, 1690, 1732, 1774, 2165, 3380, 3548, 4330, 4435, 5629, 8660, 8870, 11258, 11531, 17740, 22516, 23062, 28145, 46124, 56290, 57655, 73177, 112580, 115310, 146354, 149903, 230620, 292708, 299806, 365885, 384071, 599612, 731770, 749515, 768142, 1463540, 1499030, 1536284, 1920355, 2998060, 3840710, 4992923, 7681420, 9985846, 19971692, 24964615, 49929230, 64907999, 99858460, 129815998, 259631996, 324539995, 649079990, 1298159980]

約数ペア:

[(1, 1298159980), (2, 649079990), (4, 324539995), (5, 259631996), (10, 129815998), (13, 99858460), (20, 64907999), (26, 49929230), (52, 24964615), (65, 19971692), (130, 9985846), (169, 7681420), (260, 4992923), (338, 3840710), (433, 2998060), (676, 1920355), (845, 1536284), (866, 1499030), (887, 1463540), (1690, 768142), (1732, 749515), (1774, 731770), (2165, 599612), (3380, 384071), (3548, 365885), (4330, 299806), (4435, 292708), (5629, 230620), (8660, 149903), (8870, 146354), (11258, 115310), (11531, 112580), (17740, 73177), (22516, 57655), (23062, 56290), (28145, 46124)]