1900564540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{43651}}^1$

素因数の和:43978

約数の個数: 48

約数和(自身を含む): 4576126464

約数和(自身を除く): 2675561924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 311, 622, 1244, 1555, 2177, 3110, 4354, 6220, 8708, 10885, 21770, 43540, 43651, 87302, 174604, 218255, 305557, 436510, 611114, 873020, 1222228, 1527785, 3055570, 6111140, 13575461, 27150922, 54301844, 67877305, 95028227, 135754610, 190056454, 271509220, 380112908, 475141135, 950282270, 1900564540]

約数ペア:

[(1, 1900564540), (2, 950282270), (4, 475141135), (5, 380112908), (7, 271509220), (10, 190056454), (14, 135754610), (20, 95028227), (28, 67877305), (35, 54301844), (70, 27150922), (140, 13575461), (311, 6111140), (622, 3055570), (1244, 1527785), (1555, 1222228), (2177, 873020), (3110, 611114), (4354, 436510), (6220, 305557), (8708, 218255), (10885, 174604), (21770, 87302), (43540, 43651)]