20969520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1$

素因数の和:100

約数の個数: 240

約数和(自身を含む): 78423552

約数和(自身を除く): 57454032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 20, 22, 24, 26, 30, 33, 39, 40, 44, 47, 48, 52, 55, 60, 65, 66, 78, 80, 88, 94, 104, 110, 120, 130, 132, 141, 143, 156, 165, 169, 176, 188, 195, 208, 220, 235, 240, 260, 264, 282, 286, 312, 330, 338, 376, 390, 429, 440, 470, 507, 517, 520, 528, 564, 572, 611, 624, 660, 676, 705, 715, 752, 780, 845, 858, 880, 940, 1014, 1034, 1040, 1128, 1144, 1222, 1320, 1352, 1410, 1430, 1551, 1560, 1690, 1716, 1833, 1859, 1880, 2028, 2068, 2145, 2256, 2288, 2444, 2535, 2585, 2640, 2704, 2820, 2860, 3055, 3102, 3120, 3380, 3432, 3666, 3718, 3760, 4056, 4136, 4290, 4888, 5070, 5170, 5577, 5640, 5720, 6110, 6204, 6721, 6760, 6864, 7332, 7436, 7755, 7943, 8112, 8272, 8580, 9165, 9295, 9776, 10140, 10340, 11154, 11280, 11440, 12220, 12408, 13442, 13520, 14664, 14872, 15510, 15886, 17160, 18330, 18590, 20163, 20280, 20680, 22308, 23829, 24440, 24816, 26884, 27885, 29328, 29744, 31020, 31772, 33605, 34320, 36660, 37180, 39715, 40326, 40560, 41360, 44616, 47658, 48880, 53768, 55770, 62040, 63544, 67210, 73320, 74360, 79430, 80652, 87373, 89232, 95316, 100815, 107536, 111540, 119145, 124080, 127088, 134420, 146640, 148720, 158860, 161304, 174746, 190632, 201630, 223080, 238290, 262119, 268840, 317720, 322608, 349492, 381264, 403260, 436865, 446160, 476580, 524238, 537680, 635440, 698984, 806520, 873730, 953160, 1048476, 1310595, 1397968, 1613040, 1747460, 1906320, 2096952, 2621190, 3494920, 4193904, 5242380, 6989840, 10484760, 20969520]

約数ペア:

[(1, 20969520), (2, 10484760), (3, 6989840), (4, 5242380), (5, 4193904), (6, 3494920), (8, 2621190), (10, 2096952), (11, 1906320), (12, 1747460), (13, 1613040), (15, 1397968), (16, 1310595), (20, 1048476), (22, 953160), (24, 873730), (26, 806520), (30, 698984), (33, 635440), (39, 537680), (40, 524238), (44, 476580), (47, 446160), (48, 436865), (52, 403260), (55, 381264), (60, 349492), (65, 322608), (66, 317720), (78, 268840), (80, 262119), (88, 238290), (94, 223080), (104, 201630), (110, 190632), (120, 174746), (130, 161304), (132, 158860), (141, 148720), (143, 146640), (156, 134420), (165, 127088), (169, 124080), (176, 119145), (188, 111540), (195, 107536), (208, 100815), (220, 95316), (235, 89232), (240, 87373), (260, 80652), (264, 79430), (282, 74360), (286, 73320), (312, 67210), (330, 63544), (338, 62040), (376, 55770), (390, 53768), (429, 48880), (440, 47658), (470, 44616), (507, 41360), (517, 40560), (520, 40326), (528, 39715), (564, 37180), (572, 36660), (611, 34320), (624, 33605), (660, 31772), (676, 31020), (705, 29744), (715, 29328), (752, 27885), (780, 26884), (845, 24816), (858, 24440), (880, 23829), (940, 22308), (1014, 20680), (1034, 20280), (1040, 20163), (1128, 18590), (1144, 18330), (1222, 17160), (1320, 15886), (1352, 15510), (1410, 14872), (1430, 14664), (1551, 13520), (1560, 13442), (1690, 12408), (1716, 12220), (1833, 11440), (1859, 11280), (1880, 11154), (2028, 10340), (2068, 10140), (2145, 9776), (2256, 9295), (2288, 9165), (2444, 8580), (2535, 8272), (2585, 8112), (2640, 7943), (2704, 7755), (2820, 7436), (2860, 7332), (3055, 6864), (3102, 6760), (3120, 6721), (3380, 6204), (3432, 6110), (3666, 5720), (3718, 5640), (3760, 5577), (4056, 5170), (4136, 5070), (4290, 4888)]