1991925

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:259

約数の個数: 48

約数和(自身を含む): 3958080

約数和(自身を除く): 1966155

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 195, 225, 227, 325, 351, 585, 675, 681, 975, 1135, 1755, 2043, 2925, 2951, 3405, 5675, 6129, 8775, 8853, 10215, 14755, 17025, 26559, 30645, 44265, 51075, 73775, 79677, 132795, 153225, 221325, 398385, 663975, 1991925]

約数ペア:

[(1, 1991925), (3, 663975), (5, 398385), (9, 221325), (13, 153225), (15, 132795), (25, 79677), (27, 73775), (39, 51075), (45, 44265), (65, 30645), (75, 26559), (117, 17025), (135, 14755), (195, 10215), (225, 8853), (227, 8775), (325, 6129), (351, 5675), (585, 3405), (675, 2951), (681, 2925), (975, 2043), (1135, 1755)]