81446220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 261660672

約数和(自身を除く): 180214452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 103, 115, 138, 180, 191, 206, 207, 230, 276, 309, 345, 382, 412, 414, 460, 515, 573, 618, 690, 764, 828, 927, 955, 1030, 1035, 1146, 1236, 1380, 1545, 1719, 1854, 1910, 2060, 2070, 2292, 2369, 2865, 3090, 3438, 3708, 3820, 4140, 4393, 4635, 4738, 5730, 6180, 6876, 7107, 8595, 8786, 9270, 9476, 11460, 11845, 13179, 14214, 17190, 17572, 18540, 19673, 21321, 21965, 23690, 26358, 28428, 34380, 35535, 39346, 39537, 42642, 43930, 47380, 52716, 59019, 65895, 71070, 78692, 79074, 85284, 87860, 98365, 106605, 118038, 131790, 142140, 158148, 177057, 196730, 197685, 213210, 236076, 263580, 295095, 354114, 393460, 395370, 426420, 452479, 590190, 708228, 790740, 885285, 904958, 1180380, 1357437, 1770570, 1809916, 2262395, 2714874, 3541140, 4072311, 4524790, 5429748, 6787185, 8144622, 9049580, 13574370, 16289244, 20361555, 27148740, 40723110, 81446220]

約数ペア:

[(1, 81446220), (2, 40723110), (3, 27148740), (4, 20361555), (5, 16289244), (6, 13574370), (9, 9049580), (10, 8144622), (12, 6787185), (15, 5429748), (18, 4524790), (20, 4072311), (23, 3541140), (30, 2714874), (36, 2262395), (45, 1809916), (46, 1770570), (60, 1357437), (69, 1180380), (90, 904958), (92, 885285), (103, 790740), (115, 708228), (138, 590190), (180, 452479), (191, 426420), (206, 395370), (207, 393460), (230, 354114), (276, 295095), (309, 263580), (345, 236076), (382, 213210), (412, 197685), (414, 196730), (460, 177057), (515, 158148), (573, 142140), (618, 131790), (690, 118038), (764, 106605), (828, 98365), (927, 87860), (955, 85284), (1030, 79074), (1035, 78692), (1146, 71070), (1236, 65895), (1380, 59019), (1545, 52716), (1719, 47380), (1854, 43930), (1910, 42642), (2060, 39537), (2070, 39346), (2292, 35535), (2369, 34380), (2865, 28428), (3090, 26358), (3438, 23690), (3708, 21965), (3820, 21321), (4140, 19673), (4393, 18540), (4635, 17572), (4738, 17190), (5730, 14214), (6180, 13179), (6876, 11845), (7107, 11460), (8595, 9476), (8786, 9270)]