20001349888

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{1279}}^1$

素因数の和:1472

約数の個数: 144

約数和(自身を含む): 44540231680

約数和(自身を除く): 24538881792

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 64, 74, 104, 127, 128, 148, 208, 254, 256, 296, 416, 481, 508, 592, 832, 962, 1016, 1184, 1279, 1651, 1664, 1924, 2032, 2368, 2558, 3302, 3328, 3848, 4064, 4699, 4736, 5116, 6604, 7696, 8128, 9398, 9472, 10232, 13208, 15392, 16256, 16627, 18796, 20464, 26416, 30784, 32512, 33254, 37592, 40928, 47323, 52832, 61087, 61568, 66508, 75184, 81856, 94646, 105664, 122174, 123136, 133016, 150368, 162433, 163712, 189292, 211328, 244348, 266032, 300736, 324866, 327424, 378584, 422656, 488696, 532064, 601472, 615199, 649732, 757168, 977392, 1064128, 1202944, 1230398, 1299464, 1514336, 1954784, 2111629, 2128256, 2460796, 2598928, 3028672, 3909568, 4223258, 4256512, 4921592, 5197856, 6010021, 6057344, 7819136, 8446516, 9843184, 10395712, 12020042, 12114688, 15638272, 16893032, 19686368, 20791424, 24040084, 33786064, 39372736, 41582848, 48080168, 67572128, 78130273, 78745472, 96160336, 135144256, 156260546, 157490944, 192320672, 270288512, 312521092, 384641344, 540577024, 625042184, 769282688, 1250084368, 1538565376, 2500168736, 5000337472, 10000674944, 20001349888]

約数ペア:

[(1, 20001349888), (2, 10000674944), (4, 5000337472), (8, 2500168736), (13, 1538565376), (16, 1250084368), (26, 769282688), (32, 625042184), (37, 540577024), (52, 384641344), (64, 312521092), (74, 270288512), (104, 192320672), (127, 157490944), (128, 156260546), (148, 135144256), (208, 96160336), (254, 78745472), (256, 78130273), (296, 67572128), (416, 48080168), (481, 41582848), (508, 39372736), (592, 33786064), (832, 24040084), (962, 20791424), (1016, 19686368), (1184, 16893032), (1279, 15638272), (1651, 12114688), (1664, 12020042), (1924, 10395712), (2032, 9843184), (2368, 8446516), (2558, 7819136), (3302, 6057344), (3328, 6010021), (3848, 5197856), (4064, 4921592), (4699, 4256512), (4736, 4223258), (5116, 3909568), (6604, 3028672), (7696, 2598928), (8128, 2460796), (9398, 2128256), (9472, 2111629), (10232, 1954784), (13208, 1514336), (15392, 1299464), (16256, 1230398), (16627, 1202944), (18796, 1064128), (20464, 977392), (26416, 757168), (30784, 649732), (32512, 615199), (33254, 601472), (37592, 532064), (40928, 488696), (47323, 422656), (52832, 378584), (61087, 327424), (61568, 324866), (66508, 300736), (75184, 266032), (81856, 244348), (94646, 211328), (105664, 189292), (122174, 163712), (123136, 162433), (133016, 150368)]