25212040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{709}}^1$

素因数の和:854

約数の個数: 64

約数和(自身を含む): 65433600

約数和(自身を除く): 40221560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 280, 508, 635, 709, 889, 1016, 1270, 1418, 1778, 2540, 2836, 3545, 3556, 4445, 4963, 5080, 5672, 7090, 7112, 8890, 9926, 14180, 17780, 19852, 24815, 28360, 35560, 39704, 49630, 90043, 99260, 180086, 198520, 360172, 450215, 630301, 720344, 900430, 1260602, 1800860, 2521204, 3151505, 3601720, 5042408, 6303010, 12606020, 25212040]

約数ペア:

[(1, 25212040), (2, 12606020), (4, 6303010), (5, 5042408), (7, 3601720), (8, 3151505), (10, 2521204), (14, 1800860), (20, 1260602), (28, 900430), (35, 720344), (40, 630301), (56, 450215), (70, 360172), (127, 198520), (140, 180086), (254, 99260), (280, 90043), (508, 49630), (635, 39704), (709, 35560), (889, 28360), (1016, 24815), (1270, 19852), (1418, 17780), (1778, 14180), (2540, 9926), (2836, 8890), (3545, 7112), (3556, 7090), (4445, 5672), (4963, 5080)]