72212680

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 168583680

約数和(自身を除く): 96371000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 71, 94, 142, 188, 235, 284, 355, 376, 470, 541, 568, 710, 940, 1082, 1420, 1880, 2164, 2705, 2840, 3337, 4328, 5410, 6674, 10820, 13348, 16685, 21640, 25427, 26696, 33370, 38411, 50854, 66740, 76822, 101708, 127135, 133480, 153644, 192055, 203416, 254270, 307288, 384110, 508540, 768220, 1017080, 1536440, 1805317, 3610634, 7221268, 9026585, 14442536, 18053170, 36106340, 72212680]

約数ペア:

[(1, 72212680), (2, 36106340), (4, 18053170), (5, 14442536), (8, 9026585), (10, 7221268), (20, 3610634), (40, 1805317), (47, 1536440), (71, 1017080), (94, 768220), (142, 508540), (188, 384110), (235, 307288), (284, 254270), (355, 203416), (376, 192055), (470, 153644), (541, 133480), (568, 127135), (710, 101708), (940, 76822), (1082, 66740), (1420, 50854), (1880, 38411), (2164, 33370), (2705, 26696), (2840, 25427), (3337, 21640), (4328, 16685), (5410, 13348), (6674, 10820)]