399268520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{49171}}^1$

素因数の和:49218

約数の個数: 64

約数和(自身を含む): 1062115200

約数和(自身を除く): 662846680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 4060, 8120, 49171, 98342, 196684, 245855, 344197, 393368, 491710, 688394, 983420, 1376788, 1425959, 1720985, 1966840, 2753576, 2851918, 3441970, 5703836, 6883940, 7129795, 9981713, 11407672, 13767880, 14259590, 19963426, 28519180, 39926852, 49908565, 57038360, 79853704, 99817130, 199634260, 399268520]

約数ペア:

[(1, 399268520), (2, 199634260), (4, 99817130), (5, 79853704), (7, 57038360), (8, 49908565), (10, 39926852), (14, 28519180), (20, 19963426), (28, 14259590), (29, 13767880), (35, 11407672), (40, 9981713), (56, 7129795), (58, 6883940), (70, 5703836), (116, 3441970), (140, 2851918), (145, 2753576), (203, 1966840), (232, 1720985), (280, 1425959), (290, 1376788), (406, 983420), (580, 688394), (812, 491710), (1015, 393368), (1160, 344197), (1624, 245855), (2030, 196684), (4060, 98342), (8120, 49171)]