38131240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:263

約数の個数: 128

約数和(自身を含む): 106168320

約数和(自身を除く): 68037080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 92, 115, 124, 140, 155, 161, 184, 191, 217, 230, 248, 280, 310, 322, 382, 434, 460, 620, 644, 713, 764, 805, 868, 920, 955, 1085, 1240, 1288, 1337, 1426, 1528, 1610, 1736, 1910, 2170, 2674, 2852, 3220, 3565, 3820, 4340, 4393, 4991, 5348, 5704, 5921, 6440, 6685, 7130, 7640, 8680, 8786, 9982, 10696, 11842, 13370, 14260, 17572, 19964, 21965, 23684, 24955, 26740, 28520, 29605, 30751, 35144, 39928, 41447, 43930, 47368, 49910, 53480, 59210, 61502, 82894, 87860, 99820, 118420, 123004, 136183, 153755, 165788, 175720, 199640, 207235, 236840, 246008, 272366, 307510, 331576, 414470, 544732, 615020, 680915, 828940, 953281, 1089464, 1230040, 1361830, 1657880, 1906562, 2723660, 3813124, 4766405, 5447320, 7626248, 9532810, 19065620, 38131240]

約数ペア:

[(1, 38131240), (2, 19065620), (4, 9532810), (5, 7626248), (7, 5447320), (8, 4766405), (10, 3813124), (14, 2723660), (20, 1906562), (23, 1657880), (28, 1361830), (31, 1230040), (35, 1089464), (40, 953281), (46, 828940), (56, 680915), (62, 615020), (70, 544732), (92, 414470), (115, 331576), (124, 307510), (140, 272366), (155, 246008), (161, 236840), (184, 207235), (191, 199640), (217, 175720), (230, 165788), (248, 153755), (280, 136183), (310, 123004), (322, 118420), (382, 99820), (434, 87860), (460, 82894), (620, 61502), (644, 59210), (713, 53480), (764, 49910), (805, 47368), (868, 43930), (920, 41447), (955, 39928), (1085, 35144), (1240, 30751), (1288, 29605), (1337, 28520), (1426, 26740), (1528, 24955), (1610, 23684), (1736, 21965), (1910, 19964), (2170, 17572), (2674, 14260), (2852, 13370), (3220, 11842), (3565, 10696), (3820, 9982), (4340, 8786), (4393, 8680), (4991, 7640), (5348, 7130), (5704, 6685), (5921, 6440)]