81302340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193577}}^1$

素因数の和:193596

約数の個数: 48

約数和(自身を含む): 260168832

約数和(自身を除く): 178866492

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, 193577, 387154, 580731, 774308, 967885, 1161462, 1355039, 1935770, 2322924, 2710078, 2903655, 3871540, 4065117, 5420156, 5807310, 6775195, 8130234, 11614620, 13550390, 16260468, 20325585, 27100780, 40651170, 81302340]

約数ペア:

[(1, 81302340), (2, 40651170), (3, 27100780), (4, 20325585), (5, 16260468), (6, 13550390), (7, 11614620), (10, 8130234), (12, 6775195), (14, 5807310), (15, 5420156), (20, 4065117), (21, 3871540), (28, 2903655), (30, 2710078), (35, 2322924), (42, 1935770), (60, 1355039), (70, 1161462), (84, 967885), (105, 774308), (140, 580731), (210, 387154), (420, 193577)]