19728240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11743}}^1$

素因数の和:11766

約数の個数: 80

約数和(自身を含む): 69900288

約数和(自身を除く): 50172048

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11743, 23486, 35229, 46972, 58715, 70458, 82201, 93944, 117430, 140916, 164402, 176145, 187888, 234860, 246603, 281832, 328804, 352290, 411005, 469720, 493206, 563664, 657608, 704580, 822010, 939440, 986412, 1233015, 1315216, 1409160, 1644020, 1972824, 2466030, 2818320, 3288040, 3945648, 4932060, 6576080, 9864120, 19728240]

約数ペア:

[(1, 19728240), (2, 9864120), (3, 6576080), (4, 4932060), (5, 3945648), (6, 3288040), (7, 2818320), (8, 2466030), (10, 1972824), (12, 1644020), (14, 1409160), (15, 1315216), (16, 1233015), (20, 986412), (21, 939440), (24, 822010), (28, 704580), (30, 657608), (35, 563664), (40, 493206), (42, 469720), (48, 411005), (56, 352290), (60, 328804), (70, 281832), (80, 246603), (84, 234860), (105, 187888), (112, 176145), (120, 164402), (140, 140916), (168, 117430), (210, 93944), (240, 82201), (280, 70458), (336, 58715), (420, 46972), (560, 35229), (840, 23486), (1680, 11743)]