81333720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1931}}^1$

素因数の和:1967

約数の個数: 160

約数和(自身を含む): 294552720

約数和(自身を除く): 213219000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 81, 90, 104, 108, 117, 120, 130, 135, 156, 162, 180, 195, 216, 234, 260, 270, 312, 324, 351, 360, 390, 405, 468, 520, 540, 585, 648, 702, 780, 810, 936, 1053, 1080, 1170, 1404, 1560, 1620, 1755, 1931, 2106, 2340, 2808, 3240, 3510, 3862, 4212, 4680, 5265, 5793, 7020, 7724, 8424, 9655, 10530, 11586, 14040, 15448, 17379, 19310, 21060, 23172, 25103, 28965, 34758, 38620, 42120, 46344, 50206, 52137, 57930, 69516, 75309, 77240, 86895, 100412, 104274, 115860, 125515, 139032, 150618, 156411, 173790, 200824, 208548, 225927, 231720, 251030, 260685, 301236, 312822, 347580, 376545, 417096, 451854, 502060, 521370, 602472, 625644, 677781, 695160, 753090, 782055, 903708, 1004120, 1042740, 1129635, 1251288, 1355562, 1506180, 1564110, 1807416, 2033343, 2085480, 2259270, 2711124, 3012360, 3128220, 3388905, 4066686, 4518540, 5422248, 6256440, 6777810, 8133372, 9037080, 10166715, 13555620, 16266744, 20333430, 27111240, 40666860, 81333720]

約数ペア:

[(1, 81333720), (2, 40666860), (3, 27111240), (4, 20333430), (5, 16266744), (6, 13555620), (8, 10166715), (9, 9037080), (10, 8133372), (12, 6777810), (13, 6256440), (15, 5422248), (18, 4518540), (20, 4066686), (24, 3388905), (26, 3128220), (27, 3012360), (30, 2711124), (36, 2259270), (39, 2085480), (40, 2033343), (45, 1807416), (52, 1564110), (54, 1506180), (60, 1355562), (65, 1251288), (72, 1129635), (78, 1042740), (81, 1004120), (90, 903708), (104, 782055), (108, 753090), (117, 695160), (120, 677781), (130, 625644), (135, 602472), (156, 521370), (162, 502060), (180, 451854), (195, 417096), (216, 376545), (234, 347580), (260, 312822), (270, 301236), (312, 260685), (324, 251030), (351, 231720), (360, 225927), (390, 208548), (405, 200824), (468, 173790), (520, 156411), (540, 150618), (585, 139032), (648, 125515), (702, 115860), (780, 104274), (810, 100412), (936, 86895), (1053, 77240), (1080, 75309), (1170, 69516), (1404, 57930), (1560, 52137), (1620, 50206), (1755, 46344), (1931, 42120), (2106, 38620), (2340, 34758), (2808, 28965), (3240, 25103), (3510, 23172), (3862, 21060), (4212, 19310), (4680, 17379), (5265, 15448), (5793, 14040), (7020, 11586), (7724, 10530), (8424, 9655)]