7978740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 28242816

約数和(自身を除く): 20264076

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 157, 165, 210, 220, 231, 242, 308, 314, 330, 363, 385, 420, 462, 471, 484, 605, 628, 660, 726, 770, 785, 847, 924, 942, 1099, 1155, 1210, 1452, 1540, 1570, 1694, 1727, 1815, 1884, 2198, 2310, 2355, 2420, 2541, 3140, 3297, 3388, 3454, 3630, 4235, 4396, 4620, 4710, 5082, 5181, 5495, 6594, 6908, 7260, 8470, 8635, 9420, 10164, 10362, 10990, 12089, 12705, 13188, 16485, 16940, 17270, 18997, 20724, 21980, 24178, 25410, 25905, 32970, 34540, 36267, 37994, 48356, 50820, 51810, 56991, 60445, 65940, 72534, 75988, 94985, 103620, 113982, 120890, 132979, 145068, 181335, 189970, 227964, 241780, 265958, 284955, 362670, 379940, 398937, 531916, 569910, 664895, 725340, 797874, 1139820, 1329790, 1595748, 1994685, 2659580, 3989370, 7978740]

約数ペア:

[(1, 7978740), (2, 3989370), (3, 2659580), (4, 1994685), (5, 1595748), (6, 1329790), (7, 1139820), (10, 797874), (11, 725340), (12, 664895), (14, 569910), (15, 531916), (20, 398937), (21, 379940), (22, 362670), (28, 284955), (30, 265958), (33, 241780), (35, 227964), (42, 189970), (44, 181335), (55, 145068), (60, 132979), (66, 120890), (70, 113982), (77, 103620), (84, 94985), (105, 75988), (110, 72534), (121, 65940), (132, 60445), (140, 56991), (154, 51810), (157, 50820), (165, 48356), (210, 37994), (220, 36267), (231, 34540), (242, 32970), (308, 25905), (314, 25410), (330, 24178), (363, 21980), (385, 20724), (420, 18997), (462, 17270), (471, 16940), (484, 16485), (605, 13188), (628, 12705), (660, 12089), (726, 10990), (770, 10362), (785, 10164), (847, 9420), (924, 8635), (942, 8470), (1099, 7260), (1155, 6908), (1210, 6594), (1452, 5495), (1540, 5181), (1570, 5082), (1694, 4710), (1727, 4620), (1815, 4396), (1884, 4235), (2198, 3630), (2310, 3454), (2355, 3388), (2420, 3297), (2541, 3140)]