669670820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{199}}^1$

素因数の和:314

約数の個数: 144

約数和(自身を含む): 1780934400

約数和(自身を除く): 1111263580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 43, 52, 65, 70, 86, 91, 130, 140, 172, 182, 199, 215, 260, 301, 364, 398, 430, 455, 559, 602, 796, 860, 910, 995, 1118, 1204, 1393, 1505, 1820, 1849, 1990, 2236, 2587, 2786, 2795, 3010, 3698, 3913, 3980, 5174, 5572, 5590, 6020, 6965, 7396, 7826, 8557, 9245, 10348, 11180, 12935, 12943, 13930, 15652, 17114, 18109, 18490, 19565, 24037, 25870, 25886, 27860, 34228, 36218, 36980, 39130, 42785, 48074, 51740, 51772, 59899, 64715, 72436, 78260, 85570, 90545, 96148, 111241, 119798, 120185, 129430, 168259, 171140, 181090, 222482, 239596, 240370, 258860, 299495, 336518, 362180, 367951, 444964, 480740, 556205, 598990, 673036, 735902, 778687, 841295, 1112410, 1197980, 1471804, 1557374, 1682590, 1839755, 2224820, 2575657, 3114748, 3365180, 3679510, 3893435, 4783363, 5151314, 7359020, 7786870, 9566726, 10302628, 12878285, 15573740, 19133452, 23916815, 25756570, 33483541, 47833630, 51513140, 66967082, 95667260, 133934164, 167417705, 334835410, 669670820]

約数ペア:

[(1, 669670820), (2, 334835410), (4, 167417705), (5, 133934164), (7, 95667260), (10, 66967082), (13, 51513140), (14, 47833630), (20, 33483541), (26, 25756570), (28, 23916815), (35, 19133452), (43, 15573740), (52, 12878285), (65, 10302628), (70, 9566726), (86, 7786870), (91, 7359020), (130, 5151314), (140, 4783363), (172, 3893435), (182, 3679510), (199, 3365180), (215, 3114748), (260, 2575657), (301, 2224820), (364, 1839755), (398, 1682590), (430, 1557374), (455, 1471804), (559, 1197980), (602, 1112410), (796, 841295), (860, 778687), (910, 735902), (995, 673036), (1118, 598990), (1204, 556205), (1393, 480740), (1505, 444964), (1820, 367951), (1849, 362180), (1990, 336518), (2236, 299495), (2587, 258860), (2786, 240370), (2795, 239596), (3010, 222482), (3698, 181090), (3913, 171140), (3980, 168259), (5174, 129430), (5572, 120185), (5590, 119798), (6020, 111241), (6965, 96148), (7396, 90545), (7826, 85570), (8557, 78260), (9245, 72436), (10348, 64715), (11180, 59899), (12935, 51772), (12943, 51740), (13930, 48074), (15652, 42785), (17114, 39130), (18109, 36980), (18490, 36218), (19565, 34228), (24037, 27860), (25870, 25886)]