318405920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2389}}^1$

素因数の和:2435

約数の個数: 144

約数和(自身を含む): 926908920

約数和(自身を除く): 608503000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 160, 170, 196, 224, 238, 245, 272, 280, 340, 392, 476, 490, 544, 560, 595, 680, 784, 833, 952, 980, 1120, 1190, 1360, 1568, 1666, 1904, 1960, 2380, 2389, 2720, 3332, 3808, 3920, 4165, 4760, 4778, 6664, 7840, 8330, 9520, 9556, 11945, 13328, 16660, 16723, 19040, 19112, 23890, 26656, 33320, 33446, 38224, 40613, 47780, 66640, 66892, 76448, 81226, 83615, 95560, 117061, 133280, 133784, 162452, 167230, 191120, 203065, 234122, 267568, 284291, 324904, 334460, 382240, 406130, 468244, 535136, 568582, 585305, 649808, 668920, 812260, 936488, 1137164, 1170610, 1299616, 1337840, 1421455, 1624520, 1872976, 1990037, 2274328, 2341220, 2675680, 2842910, 3249040, 3745952, 3980074, 4548656, 4682440, 5685820, 6498080, 7960148, 9097312, 9364880, 9950185, 11371640, 15920296, 18729760, 19900370, 22743280, 31840592, 39800740, 45486560, 63681184, 79601480, 159202960, 318405920]

約数ペア:

[(1, 318405920), (2, 159202960), (4, 79601480), (5, 63681184), (7, 45486560), (8, 39800740), (10, 31840592), (14, 22743280), (16, 19900370), (17, 18729760), (20, 15920296), (28, 11371640), (32, 9950185), (34, 9364880), (35, 9097312), (40, 7960148), (49, 6498080), (56, 5685820), (68, 4682440), (70, 4548656), (80, 3980074), (85, 3745952), (98, 3249040), (112, 2842910), (119, 2675680), (136, 2341220), (140, 2274328), (160, 1990037), (170, 1872976), (196, 1624520), (224, 1421455), (238, 1337840), (245, 1299616), (272, 1170610), (280, 1137164), (340, 936488), (392, 812260), (476, 668920), (490, 649808), (544, 585305), (560, 568582), (595, 535136), (680, 468244), (784, 406130), (833, 382240), (952, 334460), (980, 324904), (1120, 284291), (1190, 267568), (1360, 234122), (1568, 203065), (1666, 191120), (1904, 167230), (1960, 162452), (2380, 133784), (2389, 133280), (2720, 117061), (3332, 95560), (3808, 83615), (3920, 81226), (4165, 76448), (4760, 66892), (4778, 66640), (6664, 47780), (7840, 40613), (8330, 38224), (9520, 33446), (9556, 33320), (11945, 26656), (13328, 23890), (16660, 19112), (16723, 19040)]