998616640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:325

約数の個数: 224

約数和(自身を含む): 2858194944

約数和(自身を除く): 1859578304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 73, 80, 112, 124, 140, 146, 155, 160, 197, 217, 224, 248, 280, 292, 310, 320, 365, 394, 434, 448, 496, 511, 560, 584, 620, 730, 788, 868, 985, 992, 1022, 1085, 1120, 1168, 1240, 1379, 1460, 1576, 1736, 1970, 1984, 2044, 2170, 2240, 2263, 2336, 2480, 2555, 2758, 2920, 3152, 3472, 3940, 4088, 4340, 4526, 4672, 4960, 5110, 5516, 5840, 6107, 6304, 6895, 6944, 7880, 8176, 8680, 9052, 9920, 10220, 11032, 11315, 11680, 12214, 12608, 13790, 13888, 14381, 15760, 15841, 16352, 17360, 18104, 20440, 22064, 22630, 23360, 24428, 27580, 28762, 30535, 31520, 31682, 32704, 34720, 36208, 40880, 42749, 44128, 45260, 48856, 55160, 57524, 61070, 63040, 63364, 69440, 71905, 72416, 79205, 81760, 85498, 88256, 90520, 97712, 100667, 110320, 115048, 122140, 126728, 143810, 144832, 158410, 163520, 170996, 181040, 195424, 201334, 213745, 220640, 230096, 244280, 253456, 287620, 316820, 341992, 362080, 390848, 402668, 427490, 441280, 445811, 460192, 488560, 503335, 506912, 575240, 633640, 683984, 724160, 805336, 854980, 891622, 920384, 977120, 1006670, 1013824, 1150480, 1267280, 1367968, 1610672, 1709960, 1783244, 1954240, 2013340, 2229055, 2300960, 2534560, 2735936, 3120677, 3221344, 3419920, 3566488, 4026680, 4458110, 4601920, 5069120, 6241354, 6442688, 6839840, 7132976, 8053360, 8916220, 12482708, 13679680, 14265952, 15603385, 16106720, 17832440, 24965416, 28531904, 31206770, 32213440, 35664880, 49930832, 62413540, 71329760, 99861664, 124827080, 142659520, 199723328, 249654160, 499308320, 998616640]

約数ペア:

[(1, 998616640), (2, 499308320), (4, 249654160), (5, 199723328), (7, 142659520), (8, 124827080), (10, 99861664), (14, 71329760), (16, 62413540), (20, 49930832), (28, 35664880), (31, 32213440), (32, 31206770), (35, 28531904), (40, 24965416), (56, 17832440), (62, 16106720), (64, 15603385), (70, 14265952), (73, 13679680), (80, 12482708), (112, 8916220), (124, 8053360), (140, 7132976), (146, 6839840), (155, 6442688), (160, 6241354), (197, 5069120), (217, 4601920), (224, 4458110), (248, 4026680), (280, 3566488), (292, 3419920), (310, 3221344), (320, 3120677), (365, 2735936), (394, 2534560), (434, 2300960), (448, 2229055), (496, 2013340), (511, 1954240), (560, 1783244), (584, 1709960), (620, 1610672), (730, 1367968), (788, 1267280), (868, 1150480), (985, 1013824), (992, 1006670), (1022, 977120), (1085, 920384), (1120, 891622), (1168, 854980), (1240, 805336), (1379, 724160), (1460, 683984), (1576, 633640), (1736, 575240), (1970, 506912), (1984, 503335), (2044, 488560), (2170, 460192), (2240, 445811), (2263, 441280), (2336, 427490), (2480, 402668), (2555, 390848), (2758, 362080), (2920, 341992), (3152, 316820), (3472, 287620), (3940, 253456), (4088, 244280), (4340, 230096), (4526, 220640), (4672, 213745), (4960, 201334), (5110, 195424), (5516, 181040), (5840, 170996), (6107, 163520), (6304, 158410), (6895, 144832), (6944, 143810), (7880, 126728), (8176, 122140), (8680, 115048), (9052, 110320), (9920, 100667), (10220, 97712), (11032, 90520), (11315, 88256), (11680, 85498), (12214, 81760), (12608, 79205), (13790, 72416), (13888, 71905), (14381, 69440), (15760, 63364), (15841, 63040), (16352, 61070), (17360, 57524), (18104, 55160), (20440, 48856), (22064, 45260), (22630, 44128), (23360, 42749), (24428, 40880), (27580, 36208), (28762, 34720), (30535, 32704), (31520, 31682)]