65640720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{273503}}^1$

素因数の和:273519

約数の個数: 40

約数和(自身を含む): 203486976

約数和(自身を除く): 137846256

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 273503, 547006, 820509, 1094012, 1367515, 1641018, 2188024, 2735030, 3282036, 4102545, 4376048, 5470060, 6564072, 8205090, 10940120, 13128144, 16410180, 21880240, 32820360, 65640720]

約数ペア:

[(1, 65640720), (2, 32820360), (3, 21880240), (4, 16410180), (5, 13128144), (6, 10940120), (8, 8205090), (10, 6564072), (12, 5470060), (15, 4376048), (16, 4102545), (20, 3282036), (24, 2735030), (30, 2188024), (40, 1641018), (48, 1367515), (60, 1094012), (80, 820509), (120, 547006), (240, 273503)]