787640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 2116800

約数和(自身を除く): 1329160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 97, 116, 140, 145, 194, 203, 232, 280, 290, 388, 406, 485, 580, 679, 776, 812, 970, 1015, 1160, 1358, 1624, 1940, 2030, 2716, 2813, 3395, 3880, 4060, 5432, 5626, 6790, 8120, 11252, 13580, 14065, 19691, 22504, 27160, 28130, 39382, 56260, 78764, 98455, 112520, 157528, 196910, 393820, 787640]

約数ペア:

[(1, 787640), (2, 393820), (4, 196910), (5, 157528), (7, 112520), (8, 98455), (10, 78764), (14, 56260), (20, 39382), (28, 28130), (29, 27160), (35, 22504), (40, 19691), (56, 14065), (58, 13580), (70, 11252), (97, 8120), (116, 6790), (140, 5626), (145, 5432), (194, 4060), (203, 3880), (232, 3395), (280, 2813), (290, 2716), (388, 2030), (406, 1940), (485, 1624), (580, 1358), (679, 1160), (776, 1015), (812, 970)]