71821080

素因数分解:

$2^3\times 3^7\times 5^1\times {\mathrm{821}}^1$

素因数の和:853

約数の個数: 128

約数和(自身を含む): 242654400

約数和(自身を除く): 170833320

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, 729, 810, 821, 972, 1080, 1215, 1458, 1620, 1642, 1944, 2187, 2430, 2463, 2916, 3240, 3284, 3645, 4105, 4374, 4860, 4926, 5832, 6568, 7290, 7389, 8210, 8748, 9720, 9852, 10935, 12315, 14580, 14778, 16420, 17496, 19704, 21870, 22167, 24630, 29160, 29556, 32840, 36945, 43740, 44334, 49260, 59112, 66501, 73890, 87480, 88668, 98520, 110835, 133002, 147780, 177336, 199503, 221670, 266004, 295560, 332505, 399006, 443340, 532008, 598509, 665010, 798012, 886680, 997515, 1197018, 1330020, 1596024, 1795527, 1995030, 2394036, 2660040, 2992545, 3591054, 3990060, 4788072, 5985090, 7182108, 7980120, 8977635, 11970180, 14364216, 17955270, 23940360, 35910540, 71821080]

約数ペア:

[(1, 71821080), (2, 35910540), (3, 23940360), (4, 17955270), (5, 14364216), (6, 11970180), (8, 8977635), (9, 7980120), (10, 7182108), (12, 5985090), (15, 4788072), (18, 3990060), (20, 3591054), (24, 2992545), (27, 2660040), (30, 2394036), (36, 1995030), (40, 1795527), (45, 1596024), (54, 1330020), (60, 1197018), (72, 997515), (81, 886680), (90, 798012), (108, 665010), (120, 598509), (135, 532008), (162, 443340), (180, 399006), (216, 332505), (243, 295560), (270, 266004), (324, 221670), (360, 199503), (405, 177336), (486, 147780), (540, 133002), (648, 110835), (729, 98520), (810, 88668), (821, 87480), (972, 73890), (1080, 66501), (1215, 59112), (1458, 49260), (1620, 44334), (1642, 43740), (1944, 36945), (2187, 32840), (2430, 29556), (2463, 29160), (2916, 24630), (3240, 22167), (3284, 21870), (3645, 19704), (4105, 17496), (4374, 16420), (4860, 14778), (4926, 14580), (5832, 12315), (6568, 10935), (7290, 9852), (7389, 9720), (8210, 8748)]