61439985

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1$

素因数の和:375

約数の個数: 64

約数和(自身を含む): 115292160

約数和(自身を除く): 53852175

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 53, 93, 135, 155, 159, 265, 277, 279, 465, 477, 795, 831, 837, 1385, 1395, 1431, 1643, 2385, 2493, 4155, 4185, 4929, 7155, 7479, 8215, 8587, 12465, 14681, 14787, 24645, 25761, 37395, 42935, 44043, 44361, 73405, 73935, 77283, 128805, 132129, 220215, 221805, 231849, 386415, 396387, 455111, 660645, 1159245, 1365333, 1981935, 2275555, 4095999, 6826665, 12287997, 20479995, 61439985]

約数ペア:

[(1, 61439985), (3, 20479995), (5, 12287997), (9, 6826665), (15, 4095999), (27, 2275555), (31, 1981935), (45, 1365333), (53, 1159245), (93, 660645), (135, 455111), (155, 396387), (159, 386415), (265, 231849), (277, 221805), (279, 220215), (465, 132129), (477, 128805), (795, 77283), (831, 73935), (837, 73405), (1385, 44361), (1395, 44043), (1431, 42935), (1643, 37395), (2385, 25761), (2493, 24645), (4155, 14787), (4185, 14681), (4929, 12465), (7155, 8587), (7479, 8215)]