19991700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:346

約数の個数: 108

約数和(自身を含む): 63585340

約数和(自身を除く): 43593640

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 97, 100, 150, 180, 194, 225, 229, 291, 300, 388, 450, 458, 485, 582, 687, 873, 900, 916, 970, 1145, 1164, 1374, 1455, 1746, 1940, 2061, 2290, 2425, 2748, 2910, 3435, 3492, 4122, 4365, 4580, 4850, 5725, 5820, 6870, 7275, 8244, 8730, 9700, 10305, 11450, 13740, 14550, 17175, 17460, 20610, 21825, 22213, 22900, 29100, 34350, 41220, 43650, 44426, 51525, 66639, 68700, 87300, 88852, 103050, 111065, 133278, 199917, 206100, 222130, 266556, 333195, 399834, 444260, 555325, 666390, 799668, 999585, 1110650, 1332780, 1665975, 1999170, 2221300, 3331950, 3998340, 4997925, 6663900, 9995850, 19991700]

約数ペア:

[(1, 19991700), (2, 9995850), (3, 6663900), (4, 4997925), (5, 3998340), (6, 3331950), (9, 2221300), (10, 1999170), (12, 1665975), (15, 1332780), (18, 1110650), (20, 999585), (25, 799668), (30, 666390), (36, 555325), (45, 444260), (50, 399834), (60, 333195), (75, 266556), (90, 222130), (97, 206100), (100, 199917), (150, 133278), (180, 111065), (194, 103050), (225, 88852), (229, 87300), (291, 68700), (300, 66639), (388, 51525), (450, 44426), (458, 43650), (485, 41220), (582, 34350), (687, 29100), (873, 22900), (900, 22213), (916, 21825), (970, 20610), (1145, 17460), (1164, 17175), (1374, 14550), (1455, 13740), (1746, 11450), (1940, 10305), (2061, 9700), (2290, 8730), (2425, 8244), (2748, 7275), (2910, 6870), (3435, 5820), (3492, 5725), (4122, 4850), (4365, 4580)]