61663180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{541}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 133852320

約数和(自身を除く): 72189140

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 139, 164, 205, 278, 410, 541, 556, 695, 820, 1082, 1390, 2164, 2705, 2780, 5410, 5699, 10820, 11398, 22181, 22796, 28495, 44362, 56990, 75199, 88724, 110905, 113980, 150398, 221810, 300796, 375995, 443620, 751990, 1503980, 3083159, 6166318, 12332636, 15415795, 30831590, 61663180]

約数ペア:

[(1, 61663180), (2, 30831590), (4, 15415795), (5, 12332636), (10, 6166318), (20, 3083159), (41, 1503980), (82, 751990), (139, 443620), (164, 375995), (205, 300796), (278, 221810), (410, 150398), (541, 113980), (556, 110905), (695, 88724), (820, 75199), (1082, 56990), (1390, 44362), (2164, 28495), (2705, 22796), (2780, 22181), (5410, 11398), (5699, 10820)]