81959760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1699}}^1$

素因数の和:1785

約数の個数: 120

約数和(自身を含む): 279520800

約数和(自身を除く): 197561040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 67, 72, 80, 90, 120, 134, 144, 180, 201, 240, 268, 335, 360, 402, 536, 603, 670, 720, 804, 1005, 1072, 1206, 1340, 1608, 1699, 2010, 2412, 2680, 3015, 3216, 3398, 4020, 4824, 5097, 5360, 6030, 6796, 8040, 8495, 9648, 10194, 12060, 13592, 15291, 16080, 16990, 20388, 24120, 25485, 27184, 30582, 33980, 40776, 48240, 50970, 61164, 67960, 76455, 81552, 101940, 113833, 122328, 135920, 152910, 203880, 227666, 244656, 305820, 341499, 407760, 455332, 569165, 611640, 682998, 910664, 1024497, 1138330, 1223280, 1365996, 1707495, 1821328, 2048994, 2276660, 2731992, 3414990, 4097988, 4553320, 5122485, 5463984, 6829980, 8195976, 9106640, 10244970, 13659960, 16391952, 20489940, 27319920, 40979880, 81959760]

約数ペア:

[(1, 81959760), (2, 40979880), (3, 27319920), (4, 20489940), (5, 16391952), (6, 13659960), (8, 10244970), (9, 9106640), (10, 8195976), (12, 6829980), (15, 5463984), (16, 5122485), (18, 4553320), (20, 4097988), (24, 3414990), (30, 2731992), (36, 2276660), (40, 2048994), (45, 1821328), (48, 1707495), (60, 1365996), (67, 1223280), (72, 1138330), (80, 1024497), (90, 910664), (120, 682998), (134, 611640), (144, 569165), (180, 455332), (201, 407760), (240, 341499), (268, 305820), (335, 244656), (360, 227666), (402, 203880), (536, 152910), (603, 135920), (670, 122328), (720, 113833), (804, 101940), (1005, 81552), (1072, 76455), (1206, 67960), (1340, 61164), (1608, 50970), (1699, 48240), (2010, 40776), (2412, 33980), (2680, 30582), (3015, 27184), (3216, 25485), (3398, 24120), (4020, 20388), (4824, 16990), (5097, 16080), (5360, 15291), (6030, 13592), (6796, 12060), (8040, 10194), (8495, 9648)]