19811400

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 192

約数和(自身を含む): 72316800

約数和(自身を除く): 52505400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 53, 56, 60, 70, 75, 84, 89, 100, 105, 106, 120, 140, 150, 159, 168, 175, 178, 200, 210, 212, 265, 267, 280, 300, 318, 350, 356, 371, 420, 424, 445, 525, 530, 534, 600, 623, 636, 700, 712, 742, 795, 840, 890, 1050, 1060, 1068, 1113, 1246, 1272, 1325, 1335, 1400, 1484, 1590, 1780, 1855, 1869, 2100, 2120, 2136, 2225, 2226, 2492, 2650, 2670, 2968, 3115, 3180, 3560, 3710, 3738, 3975, 4200, 4450, 4452, 4717, 4984, 5300, 5340, 5565, 6230, 6360, 6675, 7420, 7476, 7950, 8900, 8904, 9275, 9345, 9434, 10600, 10680, 11130, 12460, 13350, 14151, 14840, 14952, 15575, 15900, 17800, 18550, 18690, 18868, 22260, 23585, 24920, 26700, 27825, 28302, 31150, 31800, 33019, 37100, 37380, 37736, 44520, 46725, 47170, 53400, 55650, 56604, 62300, 66038, 70755, 74200, 74760, 93450, 94340, 99057, 111300, 113208, 117925, 124600, 132076, 141510, 165095, 186900, 188680, 198114, 222600, 235850, 264152, 283020, 330190, 353775, 373800, 396228, 471700, 495285, 566040, 660380, 707550, 792456, 825475, 943400, 990570, 1320760, 1415100, 1650950, 1981140, 2476425, 2830200, 3301900, 3962280, 4952850, 6603800, 9905700, 19811400]

約数ペア:

[(1, 19811400), (2, 9905700), (3, 6603800), (4, 4952850), (5, 3962280), (6, 3301900), (7, 2830200), (8, 2476425), (10, 1981140), (12, 1650950), (14, 1415100), (15, 1320760), (20, 990570), (21, 943400), (24, 825475), (25, 792456), (28, 707550), (30, 660380), (35, 566040), (40, 495285), (42, 471700), (50, 396228), (53, 373800), (56, 353775), (60, 330190), (70, 283020), (75, 264152), (84, 235850), (89, 222600), (100, 198114), (105, 188680), (106, 186900), (120, 165095), (140, 141510), (150, 132076), (159, 124600), (168, 117925), (175, 113208), (178, 111300), (200, 99057), (210, 94340), (212, 93450), (265, 74760), (267, 74200), (280, 70755), (300, 66038), (318, 62300), (350, 56604), (356, 55650), (371, 53400), (420, 47170), (424, 46725), (445, 44520), (525, 37736), (530, 37380), (534, 37100), (600, 33019), (623, 31800), (636, 31150), (700, 28302), (712, 27825), (742, 26700), (795, 24920), (840, 23585), (890, 22260), (1050, 18868), (1060, 18690), (1068, 18550), (1113, 17800), (1246, 15900), (1272, 15575), (1325, 14952), (1335, 14840), (1400, 14151), (1484, 13350), (1590, 12460), (1780, 11130), (1855, 10680), (1869, 10600), (2100, 9434), (2120, 9345), (2136, 9275), (2225, 8904), (2226, 8900), (2492, 7950), (2650, 7476), (2670, 7420), (2968, 6675), (3115, 6360), (3180, 6230), (3560, 5565), (3710, 5340), (3738, 5300), (3975, 4984), (4200, 4717), (4450, 4452)]