217858900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:458

約数の個数: 108

約数和(自身を含む): 555269148

約数和(自身を除く): 337410248

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 173, 175, 196, 245, 257, 346, 350, 490, 514, 692, 700, 865, 980, 1028, 1211, 1225, 1285, 1730, 1799, 2422, 2450, 2570, 3460, 3598, 4325, 4844, 4900, 5140, 6055, 6425, 7196, 8477, 8650, 8995, 12110, 12593, 12850, 16954, 17300, 17990, 24220, 25186, 25700, 30275, 33908, 35980, 42385, 44461, 44975, 50372, 60550, 62965, 84770, 88922, 89950, 121100, 125930, 169540, 177844, 179900, 211925, 222305, 251860, 311227, 314825, 423850, 444610, 622454, 629650, 847700, 889220, 1111525, 1244908, 1259300, 1556135, 2178589, 2223050, 3112270, 4357178, 4446100, 6224540, 7780675, 8714356, 10892945, 15561350, 21785890, 31122700, 43571780, 54464725, 108929450, 217858900]

約数ペア:

[(1, 217858900), (2, 108929450), (4, 54464725), (5, 43571780), (7, 31122700), (10, 21785890), (14, 15561350), (20, 10892945), (25, 8714356), (28, 7780675), (35, 6224540), (49, 4446100), (50, 4357178), (70, 3112270), (98, 2223050), (100, 2178589), (140, 1556135), (173, 1259300), (175, 1244908), (196, 1111525), (245, 889220), (257, 847700), (346, 629650), (350, 622454), (490, 444610), (514, 423850), (692, 314825), (700, 311227), (865, 251860), (980, 222305), (1028, 211925), (1211, 179900), (1225, 177844), (1285, 169540), (1730, 125930), (1799, 121100), (2422, 89950), (2450, 88922), (2570, 84770), (3460, 62965), (3598, 60550), (4325, 50372), (4844, 44975), (4900, 44461), (5140, 42385), (6055, 35980), (6425, 33908), (7196, 30275), (8477, 25700), (8650, 25186), (8995, 24220), (12110, 17990), (12593, 17300), (12850, 16954)]