28068690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71971}}^1$

素因数の和:71994

約数の個数: 32

約数和(自身を含む): 72547776

約数和(自身を除く): 44479086

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 71971, 143942, 215913, 359855, 431826, 719710, 935623, 1079565, 1871246, 2159130, 2806869, 4678115, 5613738, 9356230, 14034345, 28068690]

約数ペア:

[(1, 28068690), (2, 14034345), (3, 9356230), (5, 5613738), (6, 4678115), (10, 2806869), (13, 2159130), (15, 1871246), (26, 1079565), (30, 935623), (39, 719710), (65, 431826), (78, 359855), (130, 215913), (195, 143942), (390, 71971)]