67073540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 145487664

約数和(自身を除く): 78414124

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 157, 164, 205, 314, 410, 521, 628, 785, 820, 1042, 1570, 2084, 2605, 3140, 5210, 6437, 10420, 12874, 21361, 25748, 32185, 42722, 64370, 81797, 85444, 106805, 128740, 163594, 213610, 327188, 408985, 427220, 817970, 1635940, 3353677, 6707354, 13414708, 16768385, 33536770, 67073540]

約数ペア:

[(1, 67073540), (2, 33536770), (4, 16768385), (5, 13414708), (10, 6707354), (20, 3353677), (41, 1635940), (82, 817970), (157, 427220), (164, 408985), (205, 327188), (314, 213610), (410, 163594), (521, 128740), (628, 106805), (785, 85444), (820, 81797), (1042, 64370), (1570, 42722), (2084, 32185), (2605, 25748), (3140, 21361), (5210, 12874), (6437, 10420)]