20512166535

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{162389}}^1$

素因数の和:162808

約数の個数: 48

約数和(自身を含む): 40735206720

約数和(自身を除く): 20223040185

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 401, 1203, 2005, 2807, 3609, 6015, 8421, 14035, 18045, 25263, 42105, 126315, 162389, 487167, 811945, 1136723, 1461501, 2435835, 3410169, 5683615, 7307505, 10230507, 17050845, 51152535, 65117989, 195353967, 325589945, 455825923, 586061901, 976769835, 1367477769, 2279129615, 2930309505, 4102433307, 6837388845, 20512166535]

約数ペア:

[(1, 20512166535), (3, 6837388845), (5, 4102433307), (7, 2930309505), (9, 2279129615), (15, 1367477769), (21, 976769835), (35, 586061901), (45, 455825923), (63, 325589945), (105, 195353967), (315, 65117989), (401, 51152535), (1203, 17050845), (2005, 10230507), (2807, 7307505), (3609, 5683615), (6015, 3410169), (8421, 2435835), (14035, 1461501), (18045, 1136723), (25263, 811945), (42105, 487167), (126315, 162389)]