81525840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{30881}}^1$

素因数の和:30908

約数の個数: 80

約数和(自身を含む): 275714496

約数和(自身を除く): 194188656

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 30881, 61762, 92643, 123524, 154405, 185286, 247048, 308810, 339691, 370572, 463215, 494096, 617620, 679382, 741144, 926430, 1019073, 1235240, 1358764, 1482288, 1698455, 1852860, 2038146, 2470480, 2717528, 3396910, 3705720, 4076292, 5095365, 5435056, 6793820, 7411440, 8152584, 10190730, 13587640, 16305168, 20381460, 27175280, 40762920, 81525840]

約数ペア:

[(1, 81525840), (2, 40762920), (3, 27175280), (4, 20381460), (5, 16305168), (6, 13587640), (8, 10190730), (10, 8152584), (11, 7411440), (12, 6793820), (15, 5435056), (16, 5095365), (20, 4076292), (22, 3705720), (24, 3396910), (30, 2717528), (33, 2470480), (40, 2038146), (44, 1852860), (48, 1698455), (55, 1482288), (60, 1358764), (66, 1235240), (80, 1019073), (88, 926430), (110, 741144), (120, 679382), (132, 617620), (165, 494096), (176, 463215), (220, 370572), (240, 339691), (264, 308810), (330, 247048), (440, 185286), (528, 154405), (660, 123524), (880, 92643), (1320, 61762), (2640, 30881)]