25765040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:490

約数の個数: 80

約数和(自身を含む): 69162240

約数和(自身を除く): 43397200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 278, 280, 331, 556, 560, 662, 695, 973, 1112, 1324, 1390, 1655, 1946, 2224, 2317, 2648, 2780, 3310, 3892, 4634, 4865, 5296, 5560, 6620, 7784, 9268, 9730, 11120, 11585, 13240, 15568, 18536, 19460, 23170, 26480, 37072, 38920, 46009, 46340, 77840, 92018, 92680, 184036, 185360, 230045, 322063, 368072, 460090, 644126, 736144, 920180, 1288252, 1610315, 1840360, 2576504, 3220630, 3680720, 5153008, 6441260, 12882520, 25765040]

約数ペア:

[(1, 25765040), (2, 12882520), (4, 6441260), (5, 5153008), (7, 3680720), (8, 3220630), (10, 2576504), (14, 1840360), (16, 1610315), (20, 1288252), (28, 920180), (35, 736144), (40, 644126), (56, 460090), (70, 368072), (80, 322063), (112, 230045), (139, 185360), (140, 184036), (278, 92680), (280, 92018), (331, 77840), (556, 46340), (560, 46009), (662, 38920), (695, 37072), (973, 26480), (1112, 23170), (1324, 19460), (1390, 18536), (1655, 15568), (1946, 13240), (2224, 11585), (2317, 11120), (2648, 9730), (2780, 9268), (3310, 7784), (3892, 6620), (4634, 5560), (4865, 5296)]