16947280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{571}}^1$

素因数の和:644

約数の個数: 80

約数和(自身を含む): 45961344

約数和(自身を除く): 29014064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 571, 742, 848, 1060, 1142, 1484, 1855, 2120, 2284, 2855, 2968, 3710, 3997, 4240, 4568, 5710, 5936, 7420, 7994, 9136, 11420, 14840, 15988, 19985, 22840, 29680, 30263, 31976, 39970, 45680, 60526, 63952, 79940, 121052, 151315, 159880, 211841, 242104, 302630, 319760, 423682, 484208, 605260, 847364, 1059205, 1210520, 1694728, 2118410, 2421040, 3389456, 4236820, 8473640, 16947280]

約数ペア:

[(1, 16947280), (2, 8473640), (4, 4236820), (5, 3389456), (7, 2421040), (8, 2118410), (10, 1694728), (14, 1210520), (16, 1059205), (20, 847364), (28, 605260), (35, 484208), (40, 423682), (53, 319760), (56, 302630), (70, 242104), (80, 211841), (106, 159880), (112, 151315), (140, 121052), (212, 79940), (265, 63952), (280, 60526), (371, 45680), (424, 39970), (530, 31976), (560, 30263), (571, 29680), (742, 22840), (848, 19985), (1060, 15988), (1142, 14840), (1484, 11420), (1855, 9136), (2120, 7994), (2284, 7420), (2855, 5936), (2968, 5710), (3710, 4568), (3997, 4240)]