7980120

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{821}}^1$

素因数の和:847

約数の個数: 96

約数和(自身を含む): 26928720

約数和(自身を除く): 18948600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 821, 972, 1080, 1215, 1620, 1642, 1944, 2430, 2463, 3240, 3284, 4105, 4860, 4926, 6568, 7389, 8210, 9720, 9852, 12315, 14778, 16420, 19704, 22167, 24630, 29556, 32840, 36945, 44334, 49260, 59112, 66501, 73890, 88668, 98520, 110835, 133002, 147780, 177336, 199503, 221670, 266004, 295560, 332505, 399006, 443340, 532008, 665010, 798012, 886680, 997515, 1330020, 1596024, 1995030, 2660040, 3990060, 7980120]

約数ペア:

[(1, 7980120), (2, 3990060), (3, 2660040), (4, 1995030), (5, 1596024), (6, 1330020), (8, 997515), (9, 886680), (10, 798012), (12, 665010), (15, 532008), (18, 443340), (20, 399006), (24, 332505), (27, 295560), (30, 266004), (36, 221670), (40, 199503), (45, 177336), (54, 147780), (60, 133002), (72, 110835), (81, 98520), (90, 88668), (108, 73890), (120, 66501), (135, 59112), (162, 49260), (180, 44334), (216, 36945), (243, 32840), (270, 29556), (324, 24630), (360, 22167), (405, 19704), (486, 16420), (540, 14778), (648, 12315), (810, 9852), (821, 9720), (972, 8210), (1080, 7389), (1215, 6568), (1620, 4926), (1642, 4860), (1944, 4105), (2430, 3284), (2463, 3240)]