20328420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1669}}^1$

素因数の和:1717

約数の個数: 96

約数和(自身を含む): 67334400

約数和(自身を除く): 47005980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1669, 1740, 2030, 2436, 3045, 3338, 4060, 5007, 6090, 6676, 8345, 10014, 11683, 12180, 16690, 20028, 23366, 25035, 33380, 35049, 46732, 48401, 50070, 58415, 70098, 96802, 100140, 116830, 140196, 145203, 175245, 193604, 233660, 242005, 290406, 338807, 350490, 484010, 580812, 677614, 700980, 726015, 968020, 1016421, 1355228, 1452030, 1694035, 2032842, 2904060, 3388070, 4065684, 5082105, 6776140, 10164210, 20328420]

約数ペア:

[(1, 20328420), (2, 10164210), (3, 6776140), (4, 5082105), (5, 4065684), (6, 3388070), (7, 2904060), (10, 2032842), (12, 1694035), (14, 1452030), (15, 1355228), (20, 1016421), (21, 968020), (28, 726015), (29, 700980), (30, 677614), (35, 580812), (42, 484010), (58, 350490), (60, 338807), (70, 290406), (84, 242005), (87, 233660), (105, 193604), (116, 175245), (140, 145203), (145, 140196), (174, 116830), (203, 100140), (210, 96802), (290, 70098), (348, 58415), (406, 50070), (420, 48401), (435, 46732), (580, 35049), (609, 33380), (812, 25035), (870, 23366), (1015, 20028), (1218, 16690), (1669, 12180), (1740, 11683), (2030, 10014), (2436, 8345), (3045, 6676), (3338, 6090), (4060, 5007)]