138180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{47}}^1$

素因数の和:73

約数の個数: 72

約数和(自身を含む): 459648

約数和(自身を除く): 321468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 49, 60, 70, 84, 94, 98, 105, 140, 141, 147, 188, 196, 210, 235, 245, 282, 294, 329, 420, 470, 490, 564, 588, 658, 705, 735, 940, 980, 987, 1316, 1410, 1470, 1645, 1974, 2303, 2820, 2940, 3290, 3948, 4606, 4935, 6580, 6909, 9212, 9870, 11515, 13818, 19740, 23030, 27636, 34545, 46060, 69090, 138180]

約数ペア:

[(1, 138180), (2, 69090), (3, 46060), (4, 34545), (5, 27636), (6, 23030), (7, 19740), (10, 13818), (12, 11515), (14, 9870), (15, 9212), (20, 6909), (21, 6580), (28, 4935), (30, 4606), (35, 3948), (42, 3290), (47, 2940), (49, 2820), (60, 2303), (70, 1974), (84, 1645), (94, 1470), (98, 1410), (105, 1316), (140, 987), (141, 980), (147, 940), (188, 735), (196, 705), (210, 658), (235, 588), (245, 564), (282, 490), (294, 470), (329, 420)]