81660200

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13171}}^1$

素因数の和:13218

約数の個数: 48

約数和(自身を含む): 195999360

約数和(自身を除く): 114339160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 6200, 13171, 26342, 52684, 65855, 105368, 131710, 263420, 329275, 408301, 526840, 658550, 816602, 1317100, 1633204, 2041505, 2634200, 3266408, 4083010, 8166020, 10207525, 16332040, 20415050, 40830100, 81660200]

約数ペア:

[(1, 81660200), (2, 40830100), (4, 20415050), (5, 16332040), (8, 10207525), (10, 8166020), (20, 4083010), (25, 3266408), (31, 2634200), (40, 2041505), (50, 1633204), (62, 1317100), (100, 816602), (124, 658550), (155, 526840), (200, 408301), (248, 329275), (310, 263420), (620, 131710), (775, 105368), (1240, 65855), (1550, 52684), (3100, 26342), (6200, 13171)]