19993260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:463

約数の個数: 96

約数和(自身を含む): 64576512

約数和(自身を除く): 44583252

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 181, 210, 263, 362, 420, 526, 543, 724, 789, 905, 1052, 1086, 1267, 1315, 1578, 1810, 1841, 2172, 2534, 2630, 2715, 3156, 3620, 3682, 3801, 3945, 5068, 5260, 5430, 5523, 6335, 7364, 7602, 7890, 9205, 10860, 11046, 12670, 15204, 15780, 18410, 19005, 22092, 25340, 27615, 36820, 38010, 47603, 55230, 76020, 95206, 110460, 142809, 190412, 238015, 285618, 333221, 476030, 571236, 666442, 714045, 952060, 999663, 1332884, 1428090, 1666105, 1999326, 2856180, 3332210, 3998652, 4998315, 6664420, 9996630, 19993260]

約数ペア:

[(1, 19993260), (2, 9996630), (3, 6664420), (4, 4998315), (5, 3998652), (6, 3332210), (7, 2856180), (10, 1999326), (12, 1666105), (14, 1428090), (15, 1332884), (20, 999663), (21, 952060), (28, 714045), (30, 666442), (35, 571236), (42, 476030), (60, 333221), (70, 285618), (84, 238015), (105, 190412), (140, 142809), (181, 110460), (210, 95206), (263, 76020), (362, 55230), (420, 47603), (526, 38010), (543, 36820), (724, 27615), (789, 25340), (905, 22092), (1052, 19005), (1086, 18410), (1267, 15780), (1315, 15204), (1578, 12670), (1810, 11046), (1841, 10860), (2172, 9205), (2534, 7890), (2630, 7602), (2715, 7364), (3156, 6335), (3620, 5523), (3682, 5430), (3801, 5260), (3945, 5068)]