1640250

素因数分解:

$2^1\times 3^8\times 5^3$

素因数の和:41

約数の個数: 72

約数和(自身を含む): 4605588

約数和(自身を除く): 2965338

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 81, 90, 125, 135, 150, 162, 225, 243, 250, 270, 375, 405, 450, 486, 675, 729, 750, 810, 1125, 1215, 1350, 1458, 2025, 2187, 2250, 2430, 3375, 3645, 4050, 4374, 6075, 6561, 6750, 7290, 10125, 10935, 12150, 13122, 18225, 20250, 21870, 30375, 32805, 36450, 54675, 60750, 65610, 91125, 109350, 164025, 182250, 273375, 328050, 546750, 820125, 1640250]

約数ペア:

[(1, 1640250), (2, 820125), (3, 546750), (5, 328050), (6, 273375), (9, 182250), (10, 164025), (15, 109350), (18, 91125), (25, 65610), (27, 60750), (30, 54675), (45, 36450), (50, 32805), (54, 30375), (75, 21870), (81, 20250), (90, 18225), (125, 13122), (135, 12150), (150, 10935), (162, 10125), (225, 7290), (243, 6750), (250, 6561), (270, 6075), (375, 4374), (405, 4050), (450, 3645), (486, 3375), (675, 2430), (729, 2250), (750, 2187), (810, 2025), (1125, 1458), (1215, 1350)]