19718100

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:199

約数の個数: 144

約数和(自身を含む): 64926400

約数和(自身を除く): 45208300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 67, 75, 90, 100, 108, 109, 134, 135, 150, 180, 201, 218, 225, 268, 270, 300, 327, 335, 402, 436, 450, 540, 545, 603, 654, 670, 675, 804, 900, 981, 1005, 1090, 1206, 1308, 1340, 1350, 1635, 1675, 1809, 1962, 2010, 2180, 2412, 2700, 2725, 2943, 3015, 3270, 3350, 3618, 3924, 4020, 4905, 5025, 5450, 5886, 6030, 6540, 6700, 7236, 7303, 8175, 9045, 9810, 10050, 10900, 11772, 12060, 14606, 14715, 15075, 16350, 18090, 19620, 20100, 21909, 24525, 29212, 29430, 30150, 32700, 36180, 36515, 43818, 45225, 49050, 58860, 60300, 65727, 73030, 73575, 87636, 90450, 98100, 109545, 131454, 146060, 147150, 180900, 182575, 197181, 219090, 262908, 294300, 328635, 365150, 394362, 438180, 547725, 657270, 730300, 788724, 985905, 1095450, 1314540, 1643175, 1971810, 2190900, 3286350, 3943620, 4929525, 6572700, 9859050, 19718100]

約数ペア:

[(1, 19718100), (2, 9859050), (3, 6572700), (4, 4929525), (5, 3943620), (6, 3286350), (9, 2190900), (10, 1971810), (12, 1643175), (15, 1314540), (18, 1095450), (20, 985905), (25, 788724), (27, 730300), (30, 657270), (36, 547725), (45, 438180), (50, 394362), (54, 365150), (60, 328635), (67, 294300), (75, 262908), (90, 219090), (100, 197181), (108, 182575), (109, 180900), (134, 147150), (135, 146060), (150, 131454), (180, 109545), (201, 98100), (218, 90450), (225, 87636), (268, 73575), (270, 73030), (300, 65727), (327, 60300), (335, 58860), (402, 49050), (436, 45225), (450, 43818), (540, 36515), (545, 36180), (603, 32700), (654, 30150), (670, 29430), (675, 29212), (804, 24525), (900, 21909), (981, 20100), (1005, 19620), (1090, 18090), (1206, 16350), (1308, 15075), (1340, 14715), (1350, 14606), (1635, 12060), (1675, 11772), (1809, 10900), (1962, 10050), (2010, 9810), (2180, 9045), (2412, 8175), (2700, 7303), (2725, 7236), (2943, 6700), (3015, 6540), (3270, 6030), (3350, 5886), (3618, 5450), (3924, 5025), (4020, 4905)]