320908280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3361}}^1$

素因数の和:3421

約数の個数: 128

約数和(自身を含む): 929525760

約数和(自身を除く): 608617480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 88, 110, 124, 140, 154, 155, 217, 220, 248, 280, 308, 310, 341, 385, 434, 440, 616, 620, 682, 770, 868, 1085, 1240, 1364, 1540, 1705, 1736, 2170, 2387, 2728, 3080, 3361, 3410, 4340, 4774, 6722, 6820, 8680, 9548, 11935, 13444, 13640, 16805, 19096, 23527, 23870, 26888, 33610, 36971, 47054, 47740, 67220, 73942, 94108, 95480, 104191, 117635, 134440, 147884, 184855, 188216, 208382, 235270, 258797, 295768, 369710, 416764, 470540, 517594, 520955, 729337, 739420, 833528, 941080, 1035188, 1041910, 1146101, 1293985, 1458674, 1478840, 2070376, 2083820, 2292202, 2587970, 2917348, 3646685, 4167640, 4584404, 5175940, 5730505, 5834696, 7293370, 8022707, 9168808, 10351880, 11461010, 14586740, 16045414, 22922020, 29173480, 32090828, 40113535, 45844040, 64181656, 80227070, 160454140, 320908280]

約数ペア:

[(1, 320908280), (2, 160454140), (4, 80227070), (5, 64181656), (7, 45844040), (8, 40113535), (10, 32090828), (11, 29173480), (14, 22922020), (20, 16045414), (22, 14586740), (28, 11461010), (31, 10351880), (35, 9168808), (40, 8022707), (44, 7293370), (55, 5834696), (56, 5730505), (62, 5175940), (70, 4584404), (77, 4167640), (88, 3646685), (110, 2917348), (124, 2587970), (140, 2292202), (154, 2083820), (155, 2070376), (217, 1478840), (220, 1458674), (248, 1293985), (280, 1146101), (308, 1041910), (310, 1035188), (341, 941080), (385, 833528), (434, 739420), (440, 729337), (616, 520955), (620, 517594), (682, 470540), (770, 416764), (868, 369710), (1085, 295768), (1240, 258797), (1364, 235270), (1540, 208382), (1705, 188216), (1736, 184855), (2170, 147884), (2387, 134440), (2728, 117635), (3080, 104191), (3361, 95480), (3410, 94108), (4340, 73942), (4774, 67220), (6722, 47740), (6820, 47054), (8680, 36971), (9548, 33610), (11935, 26888), (13444, 23870), (13640, 23527), (16805, 19096)]