42215625

素因数分解:

$3^2\times 5^5\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 81244800

約数和(自身を除く): 39029175

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 79, 95, 125, 171, 225, 237, 285, 375, 395, 475, 625, 711, 855, 1125, 1185, 1425, 1501, 1875, 1975, 2375, 3125, 3555, 4275, 4503, 5625, 5925, 7125, 7505, 9375, 9875, 11875, 13509, 17775, 21375, 22515, 28125, 29625, 35625, 37525, 49375, 59375, 67545, 88875, 106875, 112575, 148125, 178125, 187625, 246875, 337725, 444375, 534375, 562875, 740625, 938125, 1688625, 2221875, 2814375, 4690625, 8443125, 14071875, 42215625]

約数ペア:

[(1, 42215625), (3, 14071875), (5, 8443125), (9, 4690625), (15, 2814375), (19, 2221875), (25, 1688625), (45, 938125), (57, 740625), (75, 562875), (79, 534375), (95, 444375), (125, 337725), (171, 246875), (225, 187625), (237, 178125), (285, 148125), (375, 112575), (395, 106875), (475, 88875), (625, 67545), (711, 59375), (855, 49375), (1125, 37525), (1185, 35625), (1425, 29625), (1501, 28125), (1875, 22515), (1975, 21375), (2375, 17775), (3125, 13509), (3555, 11875), (4275, 9875), (4503, 9375), (5625, 7505), (5925, 7125)]