138665260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{1303}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 309548736

約数和(自身を除く): 170883476

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 313, 340, 626, 1252, 1303, 1565, 2606, 3130, 5212, 5321, 6260, 6515, 10642, 13030, 21284, 22151, 26060, 26605, 44302, 53210, 88604, 106420, 110755, 221510, 407839, 443020, 815678, 1631356, 2039195, 4078390, 6933263, 8156780, 13866526, 27733052, 34666315, 69332630, 138665260]

約数ペア:

[(1, 138665260), (2, 69332630), (4, 34666315), (5, 27733052), (10, 13866526), (17, 8156780), (20, 6933263), (34, 4078390), (68, 2039195), (85, 1631356), (170, 815678), (313, 443020), (340, 407839), (626, 221510), (1252, 110755), (1303, 106420), (1565, 88604), (2606, 53210), (3130, 44302), (5212, 26605), (5321, 26060), (6260, 22151), (6515, 21284), (10642, 13030)]