245671920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{673}}^1$

素因数の和:721

約数の個数: 240

約数和(自身を含む): 917664480

約数和(自身を除く): 671992560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 169, 180, 195, 208, 216, 234, 240, 260, 270, 312, 338, 351, 360, 390, 432, 468, 507, 520, 540, 585, 624, 673, 676, 702, 720, 780, 845, 936, 1014, 1040, 1080, 1170, 1346, 1352, 1404, 1521, 1560, 1690, 1755, 1872, 2019, 2028, 2160, 2340, 2535, 2692, 2704, 2808, 3042, 3120, 3365, 3380, 3510, 4038, 4056, 4563, 4680, 5070, 5384, 5616, 6057, 6084, 6730, 6760, 7020, 7605, 8076, 8112, 8749, 9126, 9360, 10095, 10140, 10768, 12114, 12168, 13460, 13520, 14040, 15210, 16152, 17498, 18171, 18252, 20190, 20280, 22815, 24228, 24336, 26247, 26920, 28080, 30285, 30420, 32304, 34996, 36342, 36504, 40380, 40560, 43745, 45630, 48456, 52494, 53840, 60570, 60840, 69992, 72684, 73008, 78741, 80760, 87490, 90855, 91260, 96912, 104988, 113737, 121140, 121680, 131235, 139984, 145368, 157482, 161520, 174980, 181710, 182520, 209976, 227474, 236223, 242280, 262470, 290736, 314964, 341211, 349960, 363420, 365040, 393705, 419952, 454948, 472446, 484560, 524940, 568685, 629928, 682422, 699920, 726840, 787410, 909896, 944892, 1023633, 1049880, 1137370, 1181115, 1259856, 1364844, 1453680, 1574820, 1706055, 1819792, 1889784, 2047266, 2099760, 2274740, 2362230, 2729688, 3070899, 3149640, 3412110, 3779568, 4094532, 4549480, 4724460, 5118165, 5459376, 6141798, 6299280, 6824220, 8189064, 9098960, 9448920, 10236330, 12283596, 13648440, 15354495, 16378128, 18897840, 20472660, 24567192, 27296880, 30708990, 40945320, 49134384, 61417980, 81890640, 122835960, 245671920]

約数ペア:

[(1, 245671920), (2, 122835960), (3, 81890640), (4, 61417980), (5, 49134384), (6, 40945320), (8, 30708990), (9, 27296880), (10, 24567192), (12, 20472660), (13, 18897840), (15, 16378128), (16, 15354495), (18, 13648440), (20, 12283596), (24, 10236330), (26, 9448920), (27, 9098960), (30, 8189064), (36, 6824220), (39, 6299280), (40, 6141798), (45, 5459376), (48, 5118165), (52, 4724460), (54, 4549480), (60, 4094532), (65, 3779568), (72, 3412110), (78, 3149640), (80, 3070899), (90, 2729688), (104, 2362230), (108, 2274740), (117, 2099760), (120, 2047266), (130, 1889784), (135, 1819792), (144, 1706055), (156, 1574820), (169, 1453680), (180, 1364844), (195, 1259856), (208, 1181115), (216, 1137370), (234, 1049880), (240, 1023633), (260, 944892), (270, 909896), (312, 787410), (338, 726840), (351, 699920), (360, 682422), (390, 629928), (432, 568685), (468, 524940), (507, 484560), (520, 472446), (540, 454948), (585, 419952), (624, 393705), (673, 365040), (676, 363420), (702, 349960), (720, 341211), (780, 314964), (845, 290736), (936, 262470), (1014, 242280), (1040, 236223), (1080, 227474), (1170, 209976), (1346, 182520), (1352, 181710), (1404, 174980), (1521, 161520), (1560, 157482), (1690, 145368), (1755, 139984), (1872, 131235), (2019, 121680), (2028, 121140), (2160, 113737), (2340, 104988), (2535, 96912), (2692, 91260), (2704, 90855), (2808, 87490), (3042, 80760), (3120, 78741), (3365, 73008), (3380, 72684), (3510, 69992), (4038, 60840), (4056, 60570), (4563, 53840), (4680, 52494), (5070, 48456), (5384, 45630), (5616, 43745), (6057, 40560), (6084, 40380), (6730, 36504), (6760, 36342), (7020, 34996), (7605, 32304), (8076, 30420), (8112, 30285), (8749, 28080), (9126, 26920), (9360, 26247), (10095, 24336), (10140, 24228), (10768, 22815), (12114, 20280), (12168, 20190), (13460, 18252), (13520, 18171), (14040, 17498), (15210, 16152)]