2018992725

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{11519}}^1$

素因数の和:11595

約数の個数: 72

約数和(自身を含む): 3899750400

約数和(自身を除く): 1880757675

約数列:

[1, 3, 5, 9, 15, 19, 25, 41, 45, 57, 75, 95, 123, 171, 205, 225, 285, 369, 475, 615, 779, 855, 1025, 1425, 1845, 2337, 3075, 3895, 4275, 7011, 9225, 11519, 11685, 19475, 34557, 35055, 57595, 58425, 103671, 172785, 175275, 218861, 287975, 472279, 518355, 656583, 863925, 1094305, 1416837, 1969749, 2361395, 2591775, 3282915, 4250511, 5471525, 7084185, 8973301, 9848745, 11806975, 16414575, 21252555, 26919903, 35420925, 44866505, 49243725, 80759709, 106262775, 134599515, 224332525, 403798545, 672997575, 2018992725]

約数ペア:

[(1, 2018992725), (3, 672997575), (5, 403798545), (9, 224332525), (15, 134599515), (19, 106262775), (25, 80759709), (41, 49243725), (45, 44866505), (57, 35420925), (75, 26919903), (95, 21252555), (123, 16414575), (171, 11806975), (205, 9848745), (225, 8973301), (285, 7084185), (369, 5471525), (475, 4250511), (615, 3282915), (779, 2591775), (855, 2361395), (1025, 1969749), (1425, 1416837), (1845, 1094305), (2337, 863925), (3075, 656583), (3895, 518355), (4275, 472279), (7011, 287975), (9225, 218861), (11519, 175275), (11685, 172785), (19475, 103671), (34557, 58425), (35055, 57595)]