221378710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{44543}}^1$

素因数の和:44628

約数の個数: 32

約数和(自身を含む): 461832192

約数和(自身を除く): 240453482

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4970, 44543, 89086, 222715, 311801, 445430, 623602, 1559005, 3118010, 3162553, 6325106, 15812765, 22137871, 31625530, 44275742, 110689355, 221378710]

約数ペア:

[(1, 221378710), (2, 110689355), (5, 44275742), (7, 31625530), (10, 22137871), (14, 15812765), (35, 6325106), (70, 3162553), (71, 3118010), (142, 1559005), (355, 623602), (497, 445430), (710, 311801), (994, 222715), (2485, 89086), (4970, 44543)]