19258120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{631}}^1$

素因数の和:758

約数の個数: 64

約数和(自身を含む): 50054400

約数和(自身を除く): 30796280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 631, 763, 872, 1090, 1262, 1526, 2180, 2524, 3052, 3155, 3815, 4360, 4417, 5048, 6104, 6310, 7630, 8834, 12620, 15260, 17668, 22085, 25240, 30520, 35336, 44170, 68779, 88340, 137558, 176680, 275116, 343895, 481453, 550232, 687790, 962906, 1375580, 1925812, 2407265, 2751160, 3851624, 4814530, 9629060, 19258120]

約数ペア:

[(1, 19258120), (2, 9629060), (4, 4814530), (5, 3851624), (7, 2751160), (8, 2407265), (10, 1925812), (14, 1375580), (20, 962906), (28, 687790), (35, 550232), (40, 481453), (56, 343895), (70, 275116), (109, 176680), (140, 137558), (218, 88340), (280, 68779), (436, 44170), (545, 35336), (631, 30520), (763, 25240), (872, 22085), (1090, 17668), (1262, 15260), (1526, 12620), (2180, 8834), (2524, 7630), (3052, 6310), (3155, 6104), (3815, 5048), (4360, 4417)]