81721680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2089}}^1$

素因数の和:2268

約数の個数: 80

約数和(自身を含む): 255013440

約数和(自身を除く): 173291760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 163, 240, 326, 489, 652, 815, 978, 1304, 1630, 1956, 2089, 2445, 2608, 3260, 3912, 4178, 4890, 6267, 6520, 7824, 8356, 9780, 10445, 12534, 13040, 16712, 19560, 20890, 25068, 31335, 33424, 39120, 41780, 50136, 62670, 83560, 100272, 125340, 167120, 250680, 340507, 501360, 681014, 1021521, 1362028, 1702535, 2043042, 2724056, 3405070, 4086084, 5107605, 5448112, 6810140, 8172168, 10215210, 13620280, 16344336, 20430420, 27240560, 40860840, 81721680]

約数ペア:

[(1, 81721680), (2, 40860840), (3, 27240560), (4, 20430420), (5, 16344336), (6, 13620280), (8, 10215210), (10, 8172168), (12, 6810140), (15, 5448112), (16, 5107605), (20, 4086084), (24, 3405070), (30, 2724056), (40, 2043042), (48, 1702535), (60, 1362028), (80, 1021521), (120, 681014), (163, 501360), (240, 340507), (326, 250680), (489, 167120), (652, 125340), (815, 100272), (978, 83560), (1304, 62670), (1630, 50136), (1956, 41780), (2089, 39120), (2445, 33424), (2608, 31335), (3260, 25068), (3912, 20890), (4178, 19560), (4890, 16712), (6267, 13040), (6520, 12534), (7824, 10445), (8356, 9780)]