638554992

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{324469}}^1$

素因数の和:324521

約数の個数: 40

約数和(自身を含む): 1689839760

約数和(自身を除く): 1051284768

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 324469, 648938, 973407, 1297876, 1946814, 2595752, 3893628, 5191504, 7787256, 13303229, 15574512, 26606458, 39909687, 53212916, 79819374, 106425832, 159638748, 212851664, 319277496, 638554992]

約数ペア:

[(1, 638554992), (2, 319277496), (3, 212851664), (4, 159638748), (6, 106425832), (8, 79819374), (12, 53212916), (16, 39909687), (24, 26606458), (41, 15574512), (48, 13303229), (82, 7787256), (123, 5191504), (164, 3893628), (246, 2595752), (328, 1946814), (492, 1297876), (656, 973407), (984, 648938), (1968, 324469)]