18298280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:499

約数の個数: 128

約数和(自身を含む): 55399680

約数和(自身を除く): 37101400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 457, 520, 572, 616, 715, 728, 770, 910, 914, 1001, 1144, 1430, 1540, 1820, 1828, 2002, 2285, 2860, 3080, 3199, 3640, 3656, 4004, 4570, 5005, 5027, 5720, 5941, 6398, 8008, 9140, 10010, 10054, 11882, 12796, 15995, 18280, 20020, 20108, 23764, 25135, 25592, 29705, 31990, 35189, 40040, 40216, 41587, 47528, 50270, 59410, 63980, 65351, 70378, 83174, 100540, 118820, 127960, 130702, 140756, 166348, 175945, 201080, 207935, 237640, 261404, 281512, 326755, 332696, 351890, 415870, 457457, 522808, 653510, 703780, 831740, 914914, 1307020, 1407560, 1663480, 1829828, 2287285, 2614040, 3659656, 4574570, 9149140, 18298280]

約数ペア:

[(1, 18298280), (2, 9149140), (4, 4574570), (5, 3659656), (7, 2614040), (8, 2287285), (10, 1829828), (11, 1663480), (13, 1407560), (14, 1307020), (20, 914914), (22, 831740), (26, 703780), (28, 653510), (35, 522808), (40, 457457), (44, 415870), (52, 351890), (55, 332696), (56, 326755), (65, 281512), (70, 261404), (77, 237640), (88, 207935), (91, 201080), (104, 175945), (110, 166348), (130, 140756), (140, 130702), (143, 127960), (154, 118820), (182, 100540), (220, 83174), (260, 70378), (280, 65351), (286, 63980), (308, 59410), (364, 50270), (385, 47528), (440, 41587), (455, 40216), (457, 40040), (520, 35189), (572, 31990), (616, 29705), (715, 25592), (728, 25135), (770, 23764), (910, 20108), (914, 20020), (1001, 18280), (1144, 15995), (1430, 12796), (1540, 11882), (1820, 10054), (1828, 10010), (2002, 9140), (2285, 8008), (2860, 6398), (3080, 5941), (3199, 5720), (3640, 5027), (3656, 5005), (4004, 4570)]