209874340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{2003}}^1$

素因数の和:2069

約数の個数: 72

約数和(自身を含む): 492887808

約数和(自身を除く): 283013468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 806, 845, 1612, 1690, 2003, 2015, 3380, 4006, 4030, 5239, 8012, 8060, 10015, 10478, 20030, 20956, 26039, 26195, 40060, 52078, 52390, 62093, 104156, 104780, 124186, 130195, 248372, 260390, 310465, 338507, 520780, 620930, 677014, 807209, 1241860, 1354028, 1614418, 1692535, 3228836, 3385070, 4036045, 6770140, 8072090, 10493717, 16144180, 20987434, 41974868, 52468585, 104937170, 209874340]

約数ペア:

[(1, 209874340), (2, 104937170), (4, 52468585), (5, 41974868), (10, 20987434), (13, 16144180), (20, 10493717), (26, 8072090), (31, 6770140), (52, 4036045), (62, 3385070), (65, 3228836), (124, 1692535), (130, 1614418), (155, 1354028), (169, 1241860), (260, 807209), (310, 677014), (338, 620930), (403, 520780), (620, 338507), (676, 310465), (806, 260390), (845, 248372), (1612, 130195), (1690, 124186), (2003, 104780), (2015, 104156), (3380, 62093), (4006, 52390), (4030, 52078), (5239, 40060), (8012, 26195), (8060, 26039), (10015, 20956), (10478, 20030)]