20086760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 27329560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 97, 124, 155, 167, 194, 248, 310, 334, 388, 485, 620, 668, 776, 835, 970, 1240, 1336, 1670, 1940, 3007, 3340, 3880, 5177, 6014, 6680, 10354, 12028, 15035, 16199, 20708, 24056, 25885, 30070, 32398, 41416, 51770, 60140, 64796, 80995, 103540, 120280, 129592, 161990, 207080, 323980, 502169, 647960, 1004338, 2008676, 2510845, 4017352, 5021690, 10043380, 20086760]

約数ペア:

[(1, 20086760), (2, 10043380), (4, 5021690), (5, 4017352), (8, 2510845), (10, 2008676), (20, 1004338), (31, 647960), (40, 502169), (62, 323980), (97, 207080), (124, 161990), (155, 129592), (167, 120280), (194, 103540), (248, 80995), (310, 64796), (334, 60140), (388, 51770), (485, 41416), (620, 32398), (668, 30070), (776, 25885), (835, 24056), (970, 20708), (1240, 16199), (1336, 15035), (1670, 12028), (1940, 10354), (3007, 6680), (3340, 6014), (3880, 5177)]