247450840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:621

約数の個数: 128

約数和(自身を含む): 691205760

約数和(自身を除く): 443754920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 157, 182, 260, 280, 314, 364, 433, 455, 520, 628, 728, 785, 866, 910, 1099, 1256, 1570, 1732, 1820, 2041, 2165, 2198, 3031, 3140, 3464, 3640, 4082, 4330, 4396, 5495, 5629, 6062, 6280, 8164, 8660, 8792, 10205, 10990, 11258, 12124, 14287, 15155, 16328, 17320, 20410, 21980, 22516, 24248, 28145, 28574, 30310, 39403, 40820, 43960, 45032, 56290, 57148, 60620, 67981, 71435, 78806, 81640, 112580, 114296, 121240, 135962, 142870, 157612, 197015, 225160, 271924, 285740, 315224, 339905, 394030, 475867, 543848, 571480, 679810, 788060, 883753, 951734, 1359620, 1576120, 1767506, 1903468, 2379335, 2719240, 3535012, 3806936, 4418765, 4758670, 6186271, 7070024, 8837530, 9517340, 12372542, 17675060, 19034680, 24745084, 30931355, 35350120, 49490168, 61862710, 123725420, 247450840]

約数ペア:

[(1, 247450840), (2, 123725420), (4, 61862710), (5, 49490168), (7, 35350120), (8, 30931355), (10, 24745084), (13, 19034680), (14, 17675060), (20, 12372542), (26, 9517340), (28, 8837530), (35, 7070024), (40, 6186271), (52, 4758670), (56, 4418765), (65, 3806936), (70, 3535012), (91, 2719240), (104, 2379335), (130, 1903468), (140, 1767506), (157, 1576120), (182, 1359620), (260, 951734), (280, 883753), (314, 788060), (364, 679810), (433, 571480), (455, 543848), (520, 475867), (628, 394030), (728, 339905), (785, 315224), (866, 285740), (910, 271924), (1099, 225160), (1256, 197015), (1570, 157612), (1732, 142870), (1820, 135962), (2041, 121240), (2165, 114296), (2198, 112580), (3031, 81640), (3140, 78806), (3464, 71435), (3640, 67981), (4082, 60620), (4330, 57148), (4396, 56290), (5495, 45032), (5629, 43960), (6062, 40820), (6280, 39403), (8164, 30310), (8660, 28574), (8792, 28145), (10205, 24248), (10990, 22516), (11258, 21980), (12124, 20410), (14287, 17320), (15155, 16328)]