20439228400

素因数分解:

$2^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{18427}}^1$

素因数の和:18551

約数の個数: 120

約数和(自身を含む): 51002807040

約数和(自身を除く): 30563578640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 59, 80, 94, 100, 118, 188, 200, 235, 236, 295, 376, 400, 470, 472, 590, 752, 940, 944, 1175, 1180, 1475, 1880, 2350, 2360, 2773, 2950, 3760, 4700, 4720, 5546, 5900, 9400, 11092, 11800, 13865, 18427, 18800, 22184, 23600, 27730, 36854, 44368, 55460, 69325, 73708, 92135, 110920, 138650, 147416, 184270, 221840, 277300, 294832, 368540, 460675, 554600, 737080, 866069, 921350, 1087193, 1109200, 1474160, 1732138, 1842700, 2174386, 3464276, 3685400, 4330345, 4348772, 5435965, 6928552, 7370800, 8660690, 8697544, 10871930, 13857104, 17321380, 17395088, 21651725, 21743860, 27179825, 34642760, 43303450, 43487720, 51098071, 54359650, 69285520, 86606900, 86975440, 102196142, 108719300, 173213800, 204392284, 217438600, 255490355, 346427600, 408784568, 434877200, 510980710, 817569136, 1021961420, 1277451775, 2043922840, 2554903550, 4087845680, 5109807100, 10219614200, 20439228400]

約数ペア:

[(1, 20439228400), (2, 10219614200), (4, 5109807100), (5, 4087845680), (8, 2554903550), (10, 2043922840), (16, 1277451775), (20, 1021961420), (25, 817569136), (40, 510980710), (47, 434877200), (50, 408784568), (59, 346427600), (80, 255490355), (94, 217438600), (100, 204392284), (118, 173213800), (188, 108719300), (200, 102196142), (235, 86975440), (236, 86606900), (295, 69285520), (376, 54359650), (400, 51098071), (470, 43487720), (472, 43303450), (590, 34642760), (752, 27179825), (940, 21743860), (944, 21651725), (1175, 17395088), (1180, 17321380), (1475, 13857104), (1880, 10871930), (2350, 8697544), (2360, 8660690), (2773, 7370800), (2950, 6928552), (3760, 5435965), (4700, 4348772), (4720, 4330345), (5546, 3685400), (5900, 3464276), (9400, 2174386), (11092, 1842700), (11800, 1732138), (13865, 1474160), (18427, 1109200), (18800, 1087193), (22184, 921350), (23600, 866069), (27730, 737080), (36854, 554600), (44368, 460675), (55460, 368540), (69325, 294832), (73708, 277300), (92135, 221840), (110920, 184270), (138650, 147416)]