280058940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{222269}}^1$

素因数の和:222291

約数の個数: 72

約数和(自身を含む): 970875360

約数和(自身を除く): 690816420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 222269, 444538, 666807, 889076, 1111345, 1333614, 1555883, 2000421, 2222690, 2667228, 3111766, 3334035, 4000842, 4445380, 4667649, 6223532, 6668070, 7779415, 8001684, 9335298, 10002105, 13336140, 14002947, 15558830, 18670596, 20004210, 23338245, 28005894, 31117660, 40008420, 46676490, 56011788, 70014735, 93352980, 140029470, 280058940]

約数ペア:

[(1, 280058940), (2, 140029470), (3, 93352980), (4, 70014735), (5, 56011788), (6, 46676490), (7, 40008420), (9, 31117660), (10, 28005894), (12, 23338245), (14, 20004210), (15, 18670596), (18, 15558830), (20, 14002947), (21, 13336140), (28, 10002105), (30, 9335298), (35, 8001684), (36, 7779415), (42, 6668070), (45, 6223532), (60, 4667649), (63, 4445380), (70, 4000842), (84, 3334035), (90, 3111766), (105, 2667228), (126, 2222690), (140, 2000421), (180, 1555883), (210, 1333614), (252, 1111345), (315, 889076), (420, 666807), (630, 444538), (1260, 222269)]