20933360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1289}}^1$

素因数の和:1338

約数の個数: 80

約数和(自身を含む): 57585600

約数和(自身を除く): 36652240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1289, 1624, 2030, 2320, 2578, 3248, 4060, 5156, 6445, 8120, 9023, 10312, 12890, 16240, 18046, 20624, 25780, 36092, 37381, 45115, 51560, 72184, 74762, 90230, 103120, 144368, 149524, 180460, 186905, 261667, 299048, 360920, 373810, 523334, 598096, 721840, 747620, 1046668, 1308335, 1495240, 2093336, 2616670, 2990480, 4186672, 5233340, 10466680, 20933360]

約数ペア:

[(1, 20933360), (2, 10466680), (4, 5233340), (5, 4186672), (7, 2990480), (8, 2616670), (10, 2093336), (14, 1495240), (16, 1308335), (20, 1046668), (28, 747620), (29, 721840), (35, 598096), (40, 523334), (56, 373810), (58, 360920), (70, 299048), (80, 261667), (112, 186905), (116, 180460), (140, 149524), (145, 144368), (203, 103120), (232, 90230), (280, 74762), (290, 72184), (406, 51560), (464, 45115), (560, 37381), (580, 36092), (812, 25780), (1015, 20624), (1160, 18046), (1289, 16240), (1624, 12890), (2030, 10312), (2320, 9023), (2578, 8120), (3248, 6445), (4060, 5156)]