20176675480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{8741}}^1$

素因数の和:8981

約数の個数: 128

約数和(自身を含む): 51285467520

約数和(自身を除く): 31108792040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 193, 230, 260, 299, 386, 460, 520, 598, 772, 920, 965, 1196, 1495, 1544, 1930, 2392, 2509, 2990, 3860, 4439, 5018, 5980, 7720, 8741, 8878, 10036, 11960, 12545, 17482, 17756, 20072, 22195, 25090, 34964, 35512, 43705, 44390, 50180, 57707, 69928, 87410, 88780, 100360, 113633, 115414, 174820, 177560, 201043, 227266, 230828, 288535, 349640, 402086, 454532, 461656, 568165, 577070, 804172, 909064, 1005215, 1136330, 1154140, 1608344, 1687013, 2010430, 2272660, 2308280, 2613559, 3374026, 4020860, 4545320, 5227118, 6748052, 8041720, 8435065, 10454236, 13067795, 13496104, 16870130, 20908472, 21931169, 26135590, 33740260, 38801299, 43862338, 52271180, 67480520, 77602598, 87724676, 104542360, 109655845, 155205196, 175449352, 194006495, 219311690, 310410392, 388012990, 438623380, 504416887, 776025980, 877246760, 1008833774, 1552051960, 2017667548, 2522084435, 4035335096, 5044168870, 10088337740, 20176675480]

約数ペア:

[(1, 20176675480), (2, 10088337740), (4, 5044168870), (5, 4035335096), (8, 2522084435), (10, 2017667548), (13, 1552051960), (20, 1008833774), (23, 877246760), (26, 776025980), (40, 504416887), (46, 438623380), (52, 388012990), (65, 310410392), (92, 219311690), (104, 194006495), (115, 175449352), (130, 155205196), (184, 109655845), (193, 104542360), (230, 87724676), (260, 77602598), (299, 67480520), (386, 52271180), (460, 43862338), (520, 38801299), (598, 33740260), (772, 26135590), (920, 21931169), (965, 20908472), (1196, 16870130), (1495, 13496104), (1544, 13067795), (1930, 10454236), (2392, 8435065), (2509, 8041720), (2990, 6748052), (3860, 5227118), (4439, 4545320), (5018, 4020860), (5980, 3374026), (7720, 2613559), (8741, 2308280), (8878, 2272660), (10036, 2010430), (11960, 1687013), (12545, 1608344), (17482, 1154140), (17756, 1136330), (20072, 1005215), (22195, 909064), (25090, 804172), (34964, 577070), (35512, 568165), (43705, 461656), (44390, 454532), (50180, 402086), (57707, 349640), (69928, 288535), (87410, 230828), (88780, 227266), (100360, 201043), (113633, 177560), (115414, 174820)]