81312240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2473}}^1$

素因数の和:2626

約数の個数: 80

約数和(自身を含む): 254010528

約数和(自身を除く): 172698288

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 137, 240, 274, 411, 548, 685, 822, 1096, 1370, 1644, 2055, 2192, 2473, 2740, 3288, 4110, 4946, 5480, 6576, 7419, 8220, 9892, 10960, 12365, 14838, 16440, 19784, 24730, 29676, 32880, 37095, 39568, 49460, 59352, 74190, 98920, 118704, 148380, 197840, 296760, 338801, 593520, 677602, 1016403, 1355204, 1694005, 2032806, 2710408, 3388010, 4065612, 5082015, 5420816, 6776020, 8131224, 10164030, 13552040, 16262448, 20328060, 27104080, 40656120, 81312240]

約数ペア:

[(1, 81312240), (2, 40656120), (3, 27104080), (4, 20328060), (5, 16262448), (6, 13552040), (8, 10164030), (10, 8131224), (12, 6776020), (15, 5420816), (16, 5082015), (20, 4065612), (24, 3388010), (30, 2710408), (40, 2032806), (48, 1694005), (60, 1355204), (80, 1016403), (120, 677602), (137, 593520), (240, 338801), (274, 296760), (411, 197840), (548, 148380), (685, 118704), (822, 98920), (1096, 74190), (1370, 59352), (1644, 49460), (2055, 39568), (2192, 37095), (2473, 32880), (2740, 29676), (3288, 24730), (4110, 19784), (4946, 16440), (5480, 14838), (6576, 12365), (7419, 10960), (8220, 9892)]