280098840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{333451}}^1$

素因数の和:333472

約数の個数: 64

約数和(自身を含む): 960341760

約数和(自身を除く): 680242920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 333451, 666902, 1000353, 1333804, 1667255, 2000706, 2334157, 2667608, 3334510, 4001412, 4668314, 5001765, 6669020, 7002471, 8002824, 9336628, 10003530, 11670785, 13338040, 14004942, 18673256, 20007060, 23341570, 28009884, 35012355, 40014120, 46683140, 56019768, 70024710, 93366280, 140049420, 280098840]

約数ペア:

[(1, 280098840), (2, 140049420), (3, 93366280), (4, 70024710), (5, 56019768), (6, 46683140), (7, 40014120), (8, 35012355), (10, 28009884), (12, 23341570), (14, 20007060), (15, 18673256), (20, 14004942), (21, 13338040), (24, 11670785), (28, 10003530), (30, 9336628), (35, 8002824), (40, 7002471), (42, 6669020), (56, 5001765), (60, 4668314), (70, 4001412), (84, 3334510), (105, 2667608), (120, 2334157), (140, 2000706), (168, 1667255), (210, 1333804), (280, 1000353), (420, 666902), (840, 333451)]