19946850

素因数分解:

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

素因数の和:201

約数の個数: 144

約数和(自身を含む): 62537664

約数和(自身を除く): 42590814

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 25, 30, 33, 35, 42, 50, 55, 66, 70, 75, 77, 105, 110, 121, 150, 154, 157, 165, 175, 210, 231, 242, 275, 314, 330, 350, 363, 385, 462, 471, 525, 550, 605, 726, 770, 785, 825, 847, 942, 1050, 1099, 1155, 1210, 1570, 1650, 1694, 1727, 1815, 1925, 2198, 2310, 2355, 2541, 3025, 3297, 3454, 3630, 3850, 3925, 4235, 4710, 5082, 5181, 5495, 5775, 6050, 6594, 7850, 8470, 8635, 9075, 10362, 10990, 11550, 11775, 12089, 12705, 16485, 17270, 18150, 18997, 21175, 23550, 24178, 25410, 25905, 27475, 32970, 36267, 37994, 42350, 43175, 51810, 54950, 56991, 60445, 63525, 72534, 82425, 86350, 94985, 113982, 120890, 127050, 129525, 132979, 164850, 181335, 189970, 259050, 265958, 284955, 302225, 362670, 398937, 474925, 569910, 604450, 664895, 797874, 906675, 949850, 1329790, 1424775, 1813350, 1994685, 2849550, 3324475, 3989370, 6648950, 9973425, 19946850]

約数ペア:

[(1, 19946850), (2, 9973425), (3, 6648950), (5, 3989370), (6, 3324475), (7, 2849550), (10, 1994685), (11, 1813350), (14, 1424775), (15, 1329790), (21, 949850), (22, 906675), (25, 797874), (30, 664895), (33, 604450), (35, 569910), (42, 474925), (50, 398937), (55, 362670), (66, 302225), (70, 284955), (75, 265958), (77, 259050), (105, 189970), (110, 181335), (121, 164850), (150, 132979), (154, 129525), (157, 127050), (165, 120890), (175, 113982), (210, 94985), (231, 86350), (242, 82425), (275, 72534), (314, 63525), (330, 60445), (350, 56991), (363, 54950), (385, 51810), (462, 43175), (471, 42350), (525, 37994), (550, 36267), (605, 32970), (726, 27475), (770, 25905), (785, 25410), (825, 24178), (847, 23550), (942, 21175), (1050, 18997), (1099, 18150), (1155, 17270), (1210, 16485), (1570, 12705), (1650, 12089), (1694, 11775), (1727, 11550), (1815, 10990), (1925, 10362), (2198, 9075), (2310, 8635), (2355, 8470), (2541, 7850), (3025, 6594), (3297, 6050), (3454, 5775), (3630, 5495), (3850, 5181), (3925, 5082), (4235, 4710)]