2809240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 7372800

約数和(自身を除く): 4563560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 127, 140, 158, 254, 280, 316, 395, 508, 553, 632, 635, 790, 889, 1016, 1106, 1270, 1580, 1778, 2212, 2540, 2765, 3160, 3556, 4424, 4445, 5080, 5530, 7112, 8890, 10033, 11060, 17780, 20066, 22120, 35560, 40132, 50165, 70231, 80264, 100330, 140462, 200660, 280924, 351155, 401320, 561848, 702310, 1404620, 2809240]

約数ペア:

[(1, 2809240), (2, 1404620), (4, 702310), (5, 561848), (7, 401320), (8, 351155), (10, 280924), (14, 200660), (20, 140462), (28, 100330), (35, 80264), (40, 70231), (56, 50165), (70, 40132), (79, 35560), (127, 22120), (140, 20066), (158, 17780), (254, 11060), (280, 10033), (316, 8890), (395, 7112), (508, 5530), (553, 5080), (632, 4445), (635, 4424), (790, 3556), (889, 3160), (1016, 2765), (1106, 2540), (1270, 2212), (1580, 1778)]