20479016880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{580471}}^1$

素因数の和:580504

約数の個数: 180

約数和(自身を含む): 80004133872

約数和(自身を除く): 59525116992

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3528, 3920, 4410, 5040, 5880, 7056, 8820, 11760, 17640, 35280, 580471, 1160942, 1741413, 2321884, 2902355, 3482826, 4063297, 4643768, 5224239, 5804710, 6965652, 8126594, 8707065, 9287536, 10448478, 11609420, 12189891, 13931304, 16253188, 17414130, 20316485, 20896956, 23218840, 24379782, 26121195, 27862608, 28443079, 32506376, 34828260, 36569673, 40632970, 41793912, 46437680, 48759564, 52242390, 56886158, 60949455, 65012752, 69656520, 73139346, 81265940, 83587824, 85329237, 97519128, 104484780, 113772316, 121898910, 139313040, 142215395, 146278692, 162531880, 170658474, 182848365, 195038256, 208969560, 227544632, 243797820, 255987711, 284430790, 292557384, 325063760, 341316948, 365696730, 417939120, 426646185, 455089264, 487595640, 511975422, 568861580, 585114768, 682633896, 731393460, 853292370, 975191280, 1023950844, 1137723160, 1279938555, 1365267792, 1462786920, 1706584740, 2047901688, 2275446320, 2559877110, 2925573840, 3413169480, 4095803376, 5119754220, 6826338960, 10239508440, 20479016880]

約数ペア:

[(1, 20479016880), (2, 10239508440), (3, 6826338960), (4, 5119754220), (5, 4095803376), (6, 3413169480), (7, 2925573840), (8, 2559877110), (9, 2275446320), (10, 2047901688), (12, 1706584740), (14, 1462786920), (15, 1365267792), (16, 1279938555), (18, 1137723160), (20, 1023950844), (21, 975191280), (24, 853292370), (28, 731393460), (30, 682633896), (35, 585114768), (36, 568861580), (40, 511975422), (42, 487595640), (45, 455089264), (48, 426646185), (49, 417939120), (56, 365696730), (60, 341316948), (63, 325063760), (70, 292557384), (72, 284430790), (80, 255987711), (84, 243797820), (90, 227544632), (98, 208969560), (105, 195038256), (112, 182848365), (120, 170658474), (126, 162531880), (140, 146278692), (144, 142215395), (147, 139313040), (168, 121898910), (180, 113772316), (196, 104484780), (210, 97519128), (240, 85329237), (245, 83587824), (252, 81265940), (280, 73139346), (294, 69656520), (315, 65012752), (336, 60949455), (360, 56886158), (392, 52242390), (420, 48759564), (441, 46437680), (490, 41793912), (504, 40632970), (560, 36569673), (588, 34828260), (630, 32506376), (720, 28443079), (735, 27862608), (784, 26121195), (840, 24379782), (882, 23218840), (980, 20896956), (1008, 20316485), (1176, 17414130), (1260, 16253188), (1470, 13931304), (1680, 12189891), (1764, 11609420), (1960, 10448478), (2205, 9287536), (2352, 8707065), (2520, 8126594), (2940, 6965652), (3528, 5804710), (3920, 5224239), (4410, 4643768), (5040, 4063297), (5880, 3482826), (7056, 2902355), (8820, 2321884), (11760, 1741413), (17640, 1160942), (35280, 580471)]