39310720

素因数分解:

$2^7\times 5^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:515

約数の個数: 64

約数和(自身を含む): 94737600

約数和(自身を除く): 55426880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 257, 320, 478, 514, 640, 956, 1028, 1195, 1285, 1912, 2056, 2390, 2570, 3824, 4112, 4780, 5140, 7648, 8224, 9560, 10280, 15296, 16448, 19120, 20560, 30592, 32896, 38240, 41120, 61423, 76480, 82240, 122846, 152960, 164480, 245692, 307115, 491384, 614230, 982768, 1228460, 1965536, 2456920, 3931072, 4913840, 7862144, 9827680, 19655360, 39310720]

約数ペア:

[(1, 39310720), (2, 19655360), (4, 9827680), (5, 7862144), (8, 4913840), (10, 3931072), (16, 2456920), (20, 1965536), (32, 1228460), (40, 982768), (64, 614230), (80, 491384), (128, 307115), (160, 245692), (239, 164480), (257, 152960), (320, 122846), (478, 82240), (514, 76480), (640, 61423), (956, 41120), (1028, 38240), (1195, 32896), (1285, 30592), (1912, 20560), (2056, 19120), (2390, 16448), (2570, 15296), (3824, 10280), (4112, 9560), (4780, 8224), (5140, 7648)]