342871240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{140521}}^1$

素因数の和:140593

約数の個数: 32

約数和(自身を含む): 784112760

約数和(自身を除く): 441241520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 140521, 281042, 562084, 702605, 1124168, 1405210, 2810420, 5620840, 8571781, 17143562, 34287124, 42858905, 68574248, 85717810, 171435620, 342871240]

約数ペア:

[(1, 342871240), (2, 171435620), (4, 85717810), (5, 68574248), (8, 42858905), (10, 34287124), (20, 17143562), (40, 8571781), (61, 5620840), (122, 2810420), (244, 1405210), (305, 1124168), (488, 702605), (610, 562084), (1220, 281042), (2440, 140521)]