138032920

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{13121}}^1$

素因数の和:13395

約数の個数: 32

約数和(自身を含む): 311778720

約数和(自身を除く): 173745800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 10520, 13121, 26242, 52484, 65605, 104968, 131210, 262420, 524840, 3450823, 6901646, 13803292, 17254115, 27606584, 34508230, 69016460, 138032920]

約数ペア:

[(1, 138032920), (2, 69016460), (4, 34508230), (5, 27606584), (8, 17254115), (10, 13803292), (20, 6901646), (40, 3450823), (263, 524840), (526, 262420), (1052, 131210), (1315, 104968), (2104, 65605), (2630, 52484), (5260, 26242), (10520, 13121)]