87720780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{29837}}^1$

素因数の和:29863

約数の個数: 72

約数和(自身を含む): 285728688

約数和(自身を除く): 198007908

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 29837, 59674, 89511, 119348, 149185, 179022, 208859, 298370, 358044, 417718, 447555, 596740, 626577, 835436, 895110, 1044295, 1253154, 1462013, 1790220, 2088590, 2506308, 2924026, 3132885, 4177180, 4386039, 5848052, 6265770, 7310065, 8772078, 12531540, 14620130, 17544156, 21930195, 29240260, 43860390, 87720780]

約数ペア:

[(1, 87720780), (2, 43860390), (3, 29240260), (4, 21930195), (5, 17544156), (6, 14620130), (7, 12531540), (10, 8772078), (12, 7310065), (14, 6265770), (15, 5848052), (20, 4386039), (21, 4177180), (28, 3132885), (30, 2924026), (35, 2506308), (42, 2088590), (49, 1790220), (60, 1462013), (70, 1253154), (84, 1044295), (98, 895110), (105, 835436), (140, 626577), (147, 596740), (196, 447555), (210, 417718), (245, 358044), (294, 298370), (420, 208859), (490, 179022), (588, 149185), (735, 119348), (980, 89511), (1470, 59674), (2940, 29837)]