66856280

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{17231}}^1$

素因数の和:17339

約数の個数: 32

約数和(自身を含む): 151986240

約数和(自身を除く): 85129960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 17231, 34462, 68924, 86155, 137848, 172310, 344620, 689240, 1671407, 3342814, 6685628, 8357035, 13371256, 16714070, 33428140, 66856280]

約数ペア:

[(1, 66856280), (2, 33428140), (4, 16714070), (5, 13371256), (8, 8357035), (10, 6685628), (20, 3342814), (40, 1671407), (97, 689240), (194, 344620), (388, 172310), (485, 137848), (776, 86155), (970, 68924), (1940, 34462), (3880, 17231)]