19765800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 67704000

約数和(自身を除く): 47938200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 79, 90, 100, 120, 139, 150, 158, 180, 200, 225, 237, 278, 300, 316, 360, 395, 417, 450, 474, 556, 600, 632, 695, 711, 790, 834, 900, 948, 1112, 1185, 1251, 1390, 1422, 1580, 1668, 1800, 1896, 1975, 2085, 2370, 2502, 2780, 2844, 3160, 3336, 3475, 3555, 3950, 4170, 4740, 5004, 5560, 5688, 5925, 6255, 6950, 7110, 7900, 8340, 9480, 10008, 10425, 10981, 11850, 12510, 13900, 14220, 15800, 16680, 17775, 20850, 21962, 23700, 25020, 27800, 28440, 31275, 32943, 35550, 41700, 43924, 47400, 50040, 54905, 62550, 65886, 71100, 83400, 87848, 98829, 109810, 125100, 131772, 142200, 164715, 197658, 219620, 250200, 263544, 274525, 329430, 395316, 439240, 494145, 549050, 658860, 790632, 823575, 988290, 1098100, 1317720, 1647150, 1976580, 2196200, 2470725, 3294300, 3953160, 4941450, 6588600, 9882900, 19765800]

約数ペア:

[(1, 19765800), (2, 9882900), (3, 6588600), (4, 4941450), (5, 3953160), (6, 3294300), (8, 2470725), (9, 2196200), (10, 1976580), (12, 1647150), (15, 1317720), (18, 1098100), (20, 988290), (24, 823575), (25, 790632), (30, 658860), (36, 549050), (40, 494145), (45, 439240), (50, 395316), (60, 329430), (72, 274525), (75, 263544), (79, 250200), (90, 219620), (100, 197658), (120, 164715), (139, 142200), (150, 131772), (158, 125100), (180, 109810), (200, 98829), (225, 87848), (237, 83400), (278, 71100), (300, 65886), (316, 62550), (360, 54905), (395, 50040), (417, 47400), (450, 43924), (474, 41700), (556, 35550), (600, 32943), (632, 31275), (695, 28440), (711, 27800), (790, 25020), (834, 23700), (900, 21962), (948, 20850), (1112, 17775), (1185, 16680), (1251, 15800), (1390, 14220), (1422, 13900), (1580, 12510), (1668, 11850), (1800, 10981), (1896, 10425), (1975, 10008), (2085, 9480), (2370, 8340), (2502, 7900), (2780, 7110), (2844, 6950), (3160, 6255), (3336, 5925), (3475, 5688), (3555, 5560), (3950, 5004), (4170, 4740)]