19551420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:344

約数の個数: 144

約数和(自身を含む): 69189120

約数和(自身を除く): 49637700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 59, 60, 63, 70, 84, 90, 105, 118, 126, 140, 177, 180, 210, 236, 252, 263, 295, 315, 354, 413, 420, 526, 531, 590, 630, 708, 789, 826, 885, 1052, 1062, 1180, 1239, 1260, 1315, 1578, 1652, 1770, 1841, 2065, 2124, 2367, 2478, 2630, 2655, 3156, 3540, 3682, 3717, 3945, 4130, 4734, 4956, 5260, 5310, 5523, 6195, 7364, 7434, 7890, 8260, 9205, 9468, 10620, 11046, 11835, 12390, 14868, 15517, 15780, 16569, 18410, 18585, 22092, 23670, 24780, 27615, 31034, 33138, 36820, 37170, 46551, 47340, 55230, 62068, 66276, 74340, 77585, 82845, 93102, 108619, 110460, 139653, 155170, 165690, 186204, 217238, 232755, 279306, 310340, 325857, 331380, 434476, 465510, 543095, 558612, 651714, 698265, 931020, 977571, 1086190, 1303428, 1396530, 1629285, 1955142, 2172380, 2793060, 3258570, 3910284, 4887855, 6517140, 9775710, 19551420]

約数ペア:

[(1, 19551420), (2, 9775710), (3, 6517140), (4, 4887855), (5, 3910284), (6, 3258570), (7, 2793060), (9, 2172380), (10, 1955142), (12, 1629285), (14, 1396530), (15, 1303428), (18, 1086190), (20, 977571), (21, 931020), (28, 698265), (30, 651714), (35, 558612), (36, 543095), (42, 465510), (45, 434476), (59, 331380), (60, 325857), (63, 310340), (70, 279306), (84, 232755), (90, 217238), (105, 186204), (118, 165690), (126, 155170), (140, 139653), (177, 110460), (180, 108619), (210, 93102), (236, 82845), (252, 77585), (263, 74340), (295, 66276), (315, 62068), (354, 55230), (413, 47340), (420, 46551), (526, 37170), (531, 36820), (590, 33138), (630, 31034), (708, 27615), (789, 24780), (826, 23670), (885, 22092), (1052, 18585), (1062, 18410), (1180, 16569), (1239, 15780), (1260, 15517), (1315, 14868), (1578, 12390), (1652, 11835), (1770, 11046), (1841, 10620), (2065, 9468), (2124, 9205), (2367, 8260), (2478, 7890), (2630, 7434), (2655, 7364), (3156, 6195), (3540, 5523), (3682, 5310), (3717, 5260), (3945, 4956), (4130, 4734)]