20174271440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{42677}}^1$

素因数の和:43020

約数の個数: 80

約数和(自身を含む): 49533793920

約数和(自身を除く): 29359522480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 311, 380, 622, 760, 1244, 1520, 1555, 2488, 3110, 4976, 5909, 6220, 11818, 12440, 23636, 24880, 29545, 42677, 47272, 59090, 85354, 94544, 118180, 170708, 213385, 236360, 341416, 426770, 472720, 682832, 810863, 853540, 1621726, 1707080, 3243452, 3414160, 4054315, 6486904, 8108630, 12973808, 13272547, 16217260, 26545094, 32434520, 53090188, 64869040, 66362735, 106180376, 132725470, 212360752, 252178393, 265450940, 504356786, 530901880, 1008713572, 1061803760, 1260891965, 2017427144, 2521783930, 4034854288, 5043567860, 10087135720, 20174271440]

約数ペア:

[(1, 20174271440), (2, 10087135720), (4, 5043567860), (5, 4034854288), (8, 2521783930), (10, 2017427144), (16, 1260891965), (19, 1061803760), (20, 1008713572), (38, 530901880), (40, 504356786), (76, 265450940), (80, 252178393), (95, 212360752), (152, 132725470), (190, 106180376), (304, 66362735), (311, 64869040), (380, 53090188), (622, 32434520), (760, 26545094), (1244, 16217260), (1520, 13272547), (1555, 12973808), (2488, 8108630), (3110, 6486904), (4976, 4054315), (5909, 3414160), (6220, 3243452), (11818, 1707080), (12440, 1621726), (23636, 853540), (24880, 810863), (29545, 682832), (42677, 472720), (47272, 426770), (59090, 341416), (85354, 236360), (94544, 213385), (118180, 170708)]