438440

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 1005480

約数和(自身を除く): 567040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 113, 194, 226, 388, 452, 485, 565, 776, 904, 970, 1130, 1940, 2260, 3880, 4520, 10961, 21922, 43844, 54805, 87688, 109610, 219220, 438440]

約数ペア:

[(1, 438440), (2, 219220), (4, 109610), (5, 87688), (8, 54805), (10, 43844), (20, 21922), (40, 10961), (97, 4520), (113, 3880), (194, 2260), (226, 1940), (388, 1130), (452, 970), (485, 904), (565, 776)]