81259440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{338581}}^1$

素因数の和:338597

約数の個数: 40

約数和(自身を含む): 251905008

約数和(自身を除く): 170645568

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 338581, 677162, 1015743, 1354324, 1692905, 2031486, 2708648, 3385810, 4062972, 5078715, 5417296, 6771620, 8125944, 10157430, 13543240, 16251888, 20314860, 27086480, 40629720, 81259440]

約数ペア:

[(1, 81259440), (2, 40629720), (3, 27086480), (4, 20314860), (5, 16251888), (6, 13543240), (8, 10157430), (10, 8125944), (12, 6771620), (15, 5417296), (16, 5078715), (20, 4062972), (24, 3385810), (30, 2708648), (40, 2031486), (48, 1692905), (60, 1354324), (80, 1015743), (120, 677162), (240, 338581)]