71447870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17729}}^1$

素因数の和:17780

約数の個数: 32

約数和(自身を含む): 142974720

約数和(自身を除く): 71526850

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 17729, 35458, 88645, 177290, 230477, 460954, 549599, 1099198, 1152385, 2304770, 2747995, 5495990, 7144787, 14289574, 35723935, 71447870]

約数ペア:

[(1, 71447870), (2, 35723935), (5, 14289574), (10, 7144787), (13, 5495990), (26, 2747995), (31, 2304770), (62, 1152385), (65, 1099198), (130, 549599), (155, 460954), (310, 230477), (403, 177290), (806, 88645), (2015, 35458), (4030, 17729)]