20915191152

素因数分解:

$2^4\times 3^2\times {\mathrm{29}}^1\times {\mathrm{647}}^1\times {\mathrm{7741}}^1$

素因数の和:8431

約数の個数: 120

約数和(自身を含む): 60653305440

約数和(自身を除く): 39738114288

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 36, 48, 58, 72, 87, 116, 144, 174, 232, 261, 348, 464, 522, 647, 696, 1044, 1294, 1392, 1941, 2088, 2588, 3882, 4176, 5176, 5823, 7741, 7764, 10352, 11646, 15482, 15528, 18763, 23223, 23292, 30964, 31056, 37526, 46446, 46584, 56289, 61928, 69669, 75052, 92892, 93168, 112578, 123856, 139338, 150104, 168867, 185784, 224489, 225156, 278676, 300208, 337734, 371568, 448978, 450312, 557352, 673467, 675468, 897956, 900624, 1114704, 1346934, 1350936, 1795912, 2020401, 2693868, 2701872, 3591824, 4040802, 5008427, 5387736, 8081604, 10016854, 10775472, 15025281, 16163208, 20033708, 30050562, 32326416, 40067416, 45075843, 60101124, 80134832, 90151686, 120202248, 145244383, 180303372, 240404496, 290488766, 360606744, 435733149, 580977532, 721213488, 871466298, 1161955064, 1307199447, 1742932596, 2323910128, 2614398894, 3485865192, 5228797788, 6971730384, 10457595576, 20915191152]

約数ペア:

[(1, 20915191152), (2, 10457595576), (3, 6971730384), (4, 5228797788), (6, 3485865192), (8, 2614398894), (9, 2323910128), (12, 1742932596), (16, 1307199447), (18, 1161955064), (24, 871466298), (29, 721213488), (36, 580977532), (48, 435733149), (58, 360606744), (72, 290488766), (87, 240404496), (116, 180303372), (144, 145244383), (174, 120202248), (232, 90151686), (261, 80134832), (348, 60101124), (464, 45075843), (522, 40067416), (647, 32326416), (696, 30050562), (1044, 20033708), (1294, 16163208), (1392, 15025281), (1941, 10775472), (2088, 10016854), (2588, 8081604), (3882, 5387736), (4176, 5008427), (5176, 4040802), (5823, 3591824), (7741, 2701872), (7764, 2693868), (10352, 2020401), (11646, 1795912), (15482, 1350936), (15528, 1346934), (18763, 1114704), (23223, 900624), (23292, 897956), (30964, 675468), (31056, 673467), (37526, 557352), (46446, 450312), (46584, 448978), (56289, 371568), (61928, 337734), (69669, 300208), (75052, 278676), (92892, 225156), (93168, 224489), (112578, 185784), (123856, 168867), (139338, 150104)]