68820780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{163859}}^1$

素因数の和:163878

約数の個数: 48

約数和(自身を含む): 220227840

約数和(自身を除く): 151407060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 163859, 327718, 491577, 655436, 819295, 983154, 1147013, 1638590, 1966308, 2294026, 2457885, 3277180, 3441039, 4588052, 4915770, 5735065, 6882078, 9831540, 11470130, 13764156, 17205195, 22940260, 34410390, 68820780]

約数ペア:

[(1, 68820780), (2, 34410390), (3, 22940260), (4, 17205195), (5, 13764156), (6, 11470130), (7, 9831540), (10, 6882078), (12, 5735065), (14, 4915770), (15, 4588052), (20, 3441039), (21, 3277180), (28, 2457885), (30, 2294026), (35, 1966308), (42, 1638590), (60, 1147013), (70, 983154), (84, 819295), (105, 655436), (140, 491577), (210, 327718), (420, 163859)]