1920777625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{7933}}^1$

素因数の和:8110

約数の個数: 32

約数和(自身を含む): 2599178400

約数和(自身を除く): 678400775

約数列:

[1, 5, 13, 25, 65, 125, 149, 325, 745, 1625, 1937, 3725, 7933, 9685, 18625, 39665, 48425, 103129, 198325, 242125, 515645, 991625, 1182017, 2578225, 5910085, 12891125, 15366221, 29550425, 76831105, 147752125, 384155525, 1920777625]

約数ペア:

[(1, 1920777625), (5, 384155525), (13, 147752125), (25, 76831105), (65, 29550425), (125, 15366221), (149, 12891125), (325, 5910085), (745, 2578225), (1625, 1182017), (1937, 991625), (3725, 515645), (7933, 242125), (9685, 198325), (18625, 103129), (39665, 48425)]