21509568720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1298887}}^1$

素因数の和:1298929

約数の個数: 120

約数和(自身を含む): 75377068416

約数和(自身を除く): 53867499696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1380, 1656, 1840, 2070, 2760, 3312, 4140, 5520, 8280, 16560, 1298887, 2597774, 3896661, 5195548, 6494435, 7793322, 10391096, 11689983, 12988870, 15586644, 19483305, 20782192, 23379966, 25977740, 29874401, 31173288, 38966610, 46759932, 51955480, 58449915, 59748802, 62346576, 77933220, 89623203, 93519864, 103910960, 116899830, 119497604, 149372005, 155866440, 179246406, 187039728, 233799660, 238995208, 268869609, 298744010, 311732880, 358492812, 448116015, 467599320, 477990416, 537739218, 597488020, 716985624, 896232030, 935198640, 1075478436, 1194976040, 1344348045, 1433971248, 1792464060, 2150956872, 2389952080, 2688696090, 3584928120, 4301913744, 5377392180, 7169856240, 10754784360, 21509568720]

約数ペア:

[(1, 21509568720), (2, 10754784360), (3, 7169856240), (4, 5377392180), (5, 4301913744), (6, 3584928120), (8, 2688696090), (9, 2389952080), (10, 2150956872), (12, 1792464060), (15, 1433971248), (16, 1344348045), (18, 1194976040), (20, 1075478436), (23, 935198640), (24, 896232030), (30, 716985624), (36, 597488020), (40, 537739218), (45, 477990416), (46, 467599320), (48, 448116015), (60, 358492812), (69, 311732880), (72, 298744010), (80, 268869609), (90, 238995208), (92, 233799660), (115, 187039728), (120, 179246406), (138, 155866440), (144, 149372005), (180, 119497604), (184, 116899830), (207, 103910960), (230, 93519864), (240, 89623203), (276, 77933220), (345, 62346576), (360, 59748802), (368, 58449915), (414, 51955480), (460, 46759932), (552, 38966610), (690, 31173288), (720, 29874401), (828, 25977740), (920, 23379966), (1035, 20782192), (1104, 19483305), (1380, 15586644), (1656, 12988870), (1840, 11689983), (2070, 10391096), (2760, 7793322), (3312, 6494435), (4140, 5195548), (5520, 3896661), (8280, 2597774), (16560, 1298887)]