221863280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{653}}^1$

素因数の和:834

約数の個数: 80

約数和(自身を含む): 537179904

約数和(自身を除く): 315316624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 137, 155, 248, 274, 310, 496, 548, 620, 653, 685, 1096, 1240, 1306, 1370, 2192, 2480, 2612, 2740, 3265, 4247, 5224, 5480, 6530, 8494, 10448, 10960, 13060, 16988, 20243, 21235, 26120, 33976, 40486, 42470, 52240, 67952, 80972, 84940, 89461, 101215, 161944, 169880, 178922, 202430, 323888, 339760, 357844, 404860, 447305, 715688, 809720, 894610, 1431376, 1619440, 1789220, 2773291, 3578440, 5546582, 7156880, 11093164, 13866455, 22186328, 27732910, 44372656, 55465820, 110931640, 221863280]

約数ペア:

[(1, 221863280), (2, 110931640), (4, 55465820), (5, 44372656), (8, 27732910), (10, 22186328), (16, 13866455), (20, 11093164), (31, 7156880), (40, 5546582), (62, 3578440), (80, 2773291), (124, 1789220), (137, 1619440), (155, 1431376), (248, 894610), (274, 809720), (310, 715688), (496, 447305), (548, 404860), (620, 357844), (653, 339760), (685, 323888), (1096, 202430), (1240, 178922), (1306, 169880), (1370, 161944), (2192, 101215), (2480, 89461), (2612, 84940), (2740, 80972), (3265, 67952), (4247, 52240), (5224, 42470), (5480, 40486), (6530, 33976), (8494, 26120), (10448, 21235), (10960, 20243), (13060, 16988)]