28770140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2309}}^1$

素因数の和:2414

約数の個数: 48

約数和(自身を含む): 69854400

約数和(自身を除く): 41084260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2309, 2492, 3115, 4618, 6230, 9236, 11545, 12460, 16163, 23090, 32326, 46180, 64652, 80815, 161630, 205501, 323260, 411002, 822004, 1027505, 1438507, 2055010, 2877014, 4110020, 5754028, 7192535, 14385070, 28770140]

約数ペア:

[(1, 28770140), (2, 14385070), (4, 7192535), (5, 5754028), (7, 4110020), (10, 2877014), (14, 2055010), (20, 1438507), (28, 1027505), (35, 822004), (70, 411002), (89, 323260), (140, 205501), (178, 161630), (356, 80815), (445, 64652), (623, 46180), (890, 32326), (1246, 23090), (1780, 16163), (2309, 12460), (2492, 11545), (3115, 9236), (4618, 6230)]