163522940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{16451}}^1$

素因数の和:16538

約数の個数: 48

約数和(自身を含む): 398006784

約数和(自身を除く): 234483844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 16451, 32902, 65804, 82255, 115157, 164510, 230314, 329020, 460628, 575785, 1151570, 1168021, 2303140, 2336042, 4672084, 5840105, 8176147, 11680210, 16352294, 23360420, 32704588, 40880735, 81761470, 163522940]

約数ペア:

[(1, 163522940), (2, 81761470), (4, 40880735), (5, 32704588), (7, 23360420), (10, 16352294), (14, 11680210), (20, 8176147), (28, 5840105), (35, 4672084), (70, 2336042), (71, 2303140), (140, 1168021), (142, 1151570), (284, 575785), (355, 460628), (497, 329020), (710, 230314), (994, 164510), (1420, 115157), (1988, 82255), (2485, 65804), (4970, 32902), (9940, 16451)]