30689920

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{607}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 74419200

約数和(自身を除く): 43729280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 607, 632, 640, 790, 1214, 1264, 1580, 2428, 2528, 3035, 3160, 4856, 5056, 6070, 6320, 9712, 10112, 12140, 12640, 19424, 24280, 25280, 38848, 47953, 48560, 50560, 77696, 95906, 97120, 191812, 194240, 239765, 383624, 388480, 479530, 767248, 959060, 1534496, 1918120, 3068992, 3836240, 6137984, 7672480, 15344960, 30689920]

約数ペア:

[(1, 30689920), (2, 15344960), (4, 7672480), (5, 6137984), (8, 3836240), (10, 3068992), (16, 1918120), (20, 1534496), (32, 959060), (40, 767248), (64, 479530), (79, 388480), (80, 383624), (128, 239765), (158, 194240), (160, 191812), (316, 97120), (320, 95906), (395, 77696), (607, 50560), (632, 48560), (640, 47953), (790, 38848), (1214, 25280), (1264, 24280), (1580, 19424), (2428, 12640), (2528, 12140), (3035, 10112), (3160, 9712), (4856, 6320), (5056, 6070)]