321158140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:395

約数の個数: 96

約数和(自身を含む): 741888000

約数和(自身を除く): 420729860

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 137, 155, 190, 199, 274, 310, 380, 398, 548, 589, 620, 685, 796, 995, 1178, 1370, 1990, 2356, 2603, 2740, 2945, 3781, 3980, 4247, 5206, 5890, 6169, 7562, 8494, 10412, 11780, 12338, 13015, 15124, 16988, 18905, 21235, 24676, 26030, 27263, 30845, 37810, 42470, 52060, 54526, 61690, 75620, 80693, 84940, 109052, 117211, 123380, 136315, 161386, 234422, 272630, 322772, 403465, 468844, 517997, 545260, 586055, 806930, 845153, 1035994, 1172110, 1613860, 1690306, 2071988, 2344220, 2589985, 3380612, 4225765, 5179970, 8451530, 10359940, 16057907, 16903060, 32115814, 64231628, 80289535, 160579070, 321158140]

約数ペア:

[(1, 321158140), (2, 160579070), (4, 80289535), (5, 64231628), (10, 32115814), (19, 16903060), (20, 16057907), (31, 10359940), (38, 8451530), (62, 5179970), (76, 4225765), (95, 3380612), (124, 2589985), (137, 2344220), (155, 2071988), (190, 1690306), (199, 1613860), (274, 1172110), (310, 1035994), (380, 845153), (398, 806930), (548, 586055), (589, 545260), (620, 517997), (685, 468844), (796, 403465), (995, 322772), (1178, 272630), (1370, 234422), (1990, 161386), (2356, 136315), (2603, 123380), (2740, 117211), (2945, 109052), (3781, 84940), (3980, 80693), (4247, 75620), (5206, 61690), (5890, 54526), (6169, 52060), (7562, 42470), (8494, 37810), (10412, 30845), (11780, 27263), (12338, 26030), (13015, 24676), (15124, 21235), (16988, 18905)]