315040720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{691}}^1$

素因数の和:884

約数の個数: 80

約数和(自身を含む): 756826560

約数和(自身を除く): 441785840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 139, 164, 205, 278, 328, 410, 556, 656, 691, 695, 820, 1112, 1382, 1390, 1640, 2224, 2764, 2780, 3280, 3455, 5528, 5560, 5699, 6910, 11056, 11120, 11398, 13820, 22796, 27640, 28331, 28495, 45592, 55280, 56662, 56990, 91184, 96049, 113324, 113980, 141655, 192098, 226648, 227960, 283310, 384196, 453296, 455920, 480245, 566620, 768392, 960490, 1133240, 1536784, 1920980, 2266480, 3841960, 3938009, 7683920, 7876018, 15752036, 19690045, 31504072, 39380090, 63008144, 78760180, 157520360, 315040720]

約数ペア:

[(1, 315040720), (2, 157520360), (4, 78760180), (5, 63008144), (8, 39380090), (10, 31504072), (16, 19690045), (20, 15752036), (40, 7876018), (41, 7683920), (80, 3938009), (82, 3841960), (139, 2266480), (164, 1920980), (205, 1536784), (278, 1133240), (328, 960490), (410, 768392), (556, 566620), (656, 480245), (691, 455920), (695, 453296), (820, 384196), (1112, 283310), (1382, 227960), (1390, 226648), (1640, 192098), (2224, 141655), (2764, 113980), (2780, 113324), (3280, 96049), (3455, 91184), (5528, 56990), (5560, 56662), (5699, 55280), (6910, 45592), (11056, 28495), (11120, 28331), (11398, 27640), (13820, 22796)]