128649560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19031}}^1$

素因数の和:19068

約数の個数: 48

約数和(自身を含む): 313457040

約数和(自身を除く): 184807480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 19031, 38062, 76124, 95155, 152248, 190310, 247403, 380620, 494806, 761240, 989612, 1237015, 1979224, 2474030, 3216239, 4948060, 6432478, 9896120, 12864956, 16081195, 25729912, 32162390, 64324780, 128649560]

約数ペア:

[(1, 128649560), (2, 64324780), (4, 32162390), (5, 25729912), (8, 16081195), (10, 12864956), (13, 9896120), (20, 6432478), (26, 4948060), (40, 3216239), (52, 2474030), (65, 1979224), (104, 1237015), (130, 989612), (169, 761240), (260, 494806), (338, 380620), (520, 247403), (676, 190310), (845, 152248), (1352, 95155), (1690, 76124), (3380, 38062), (6760, 19031)]