87663880

素因数分解:

$2^3\times 5^1\times {\mathrm{1439}}^1\times {\mathrm{1523}}^1$

素因数の和:2973

約数の個数: 32

約数和(自身を含む): 197510400

約数和(自身を除く): 109846520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1439, 1523, 2878, 3046, 5756, 6092, 7195, 7615, 11512, 12184, 14390, 15230, 28780, 30460, 57560, 60920, 2191597, 4383194, 8766388, 10957985, 17532776, 21915970, 43831940, 87663880]

約数ペア:

[(1, 87663880), (2, 43831940), (4, 21915970), (5, 17532776), (8, 10957985), (10, 8766388), (20, 4383194), (40, 2191597), (1439, 60920), (1523, 57560), (2878, 30460), (3046, 28780), (5756, 15230), (6092, 14390), (7195, 12184), (7615, 11512)]