19393180

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 42517440

約数和(自身を除く): 23124260

約数列:

[1, 2, 4, 5, 10, 20, 37, 73, 74, 146, 148, 185, 292, 359, 365, 370, 718, 730, 740, 1436, 1460, 1795, 2701, 3590, 5402, 7180, 10804, 13283, 13505, 26207, 26566, 27010, 52414, 53132, 54020, 66415, 104828, 131035, 132830, 262070, 265660, 524140, 969659, 1939318, 3878636, 4848295, 9696590, 19393180]

約数ペア:

[(1, 19393180), (2, 9696590), (4, 4848295), (5, 3878636), (10, 1939318), (20, 969659), (37, 524140), (73, 265660), (74, 262070), (146, 132830), (148, 131035), (185, 104828), (292, 66415), (359, 54020), (365, 53132), (370, 52414), (718, 27010), (730, 26566), (740, 26207), (1436, 13505), (1460, 13283), (1795, 10804), (2701, 7180), (3590, 5402)]