998588640

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{42457}}^1$

素因数の和:42489

約数の個数: 144

約数和(自身を含む): 3659200272

約数和(自身を除く): 2660611632

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 11760, 23520, 42457, 84914, 127371, 169828, 212285, 254742, 297199, 339656, 424570, 509484, 594398, 636855, 679312, 849140, 891597, 1018968, 1188796, 1273710, 1358624, 1485995, 1698280, 1783194, 2037936, 2080393, 2377592, 2547420, 2971990, 3396560, 3566388, 4075872, 4160786, 4457985, 4755184, 5094840, 5943980, 6241179, 6793120, 7132776, 8321572, 8915970, 9510368, 10189680, 10401965, 11887960, 12482358, 14265552, 16643144, 17831940, 20379360, 20803930, 23775920, 24964716, 28531104, 31205895, 33286288, 35663880, 41607860, 47551840, 49929432, 62411790, 66572576, 71327760, 83215720, 99858864, 124823580, 142655520, 166431440, 199717728, 249647160, 332862880, 499294320, 998588640]

約数ペア:

[(1, 998588640), (2, 499294320), (3, 332862880), (4, 249647160), (5, 199717728), (6, 166431440), (7, 142655520), (8, 124823580), (10, 99858864), (12, 83215720), (14, 71327760), (15, 66572576), (16, 62411790), (20, 49929432), (21, 47551840), (24, 41607860), (28, 35663880), (30, 33286288), (32, 31205895), (35, 28531104), (40, 24964716), (42, 23775920), (48, 20803930), (49, 20379360), (56, 17831940), (60, 16643144), (70, 14265552), (80, 12482358), (84, 11887960), (96, 10401965), (98, 10189680), (105, 9510368), (112, 8915970), (120, 8321572), (140, 7132776), (147, 6793120), (160, 6241179), (168, 5943980), (196, 5094840), (210, 4755184), (224, 4457985), (240, 4160786), (245, 4075872), (280, 3566388), (294, 3396560), (336, 2971990), (392, 2547420), (420, 2377592), (480, 2080393), (490, 2037936), (560, 1783194), (588, 1698280), (672, 1485995), (735, 1358624), (784, 1273710), (840, 1188796), (980, 1018968), (1120, 891597), (1176, 849140), (1470, 679312), (1568, 636855), (1680, 594398), (1960, 509484), (2352, 424570), (2940, 339656), (3360, 297199), (3920, 254742), (4704, 212285), (5880, 169828), (7840, 127371), (11760, 84914), (23520, 42457)]