198485780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{2081}}^1$

素因数の和:2360

約数の個数: 48

約数和(自身を含む): 440717760

約数和(自身を除く): 242231980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 251, 380, 502, 1004, 1255, 2081, 2510, 4162, 4769, 5020, 8324, 9538, 10405, 19076, 20810, 23845, 39539, 41620, 47690, 79078, 95380, 158156, 197695, 395390, 522331, 790780, 1044662, 2089324, 2611655, 5223310, 9924289, 10446620, 19848578, 39697156, 49621445, 99242890, 198485780]

約数ペア:

[(1, 198485780), (2, 99242890), (4, 49621445), (5, 39697156), (10, 19848578), (19, 10446620), (20, 9924289), (38, 5223310), (76, 2611655), (95, 2089324), (190, 1044662), (251, 790780), (380, 522331), (502, 395390), (1004, 197695), (1255, 158156), (2081, 95380), (2510, 79078), (4162, 47690), (4769, 41620), (5020, 39539), (8324, 23845), (9538, 20810), (10405, 19076)]