20676240

素因数分解:

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

素因数の和:126

約数の個数: 180

約数和(自身を含む): 76403964

約数和(自身を除く): 55727724

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 47, 48, 52, 60, 65, 72, 78, 80, 90, 94, 104, 117, 120, 130, 141, 144, 156, 180, 188, 195, 208, 234, 235, 240, 260, 282, 312, 360, 376, 390, 423, 468, 470, 520, 564, 585, 611, 624, 705, 720, 752, 780, 846, 936, 940, 1040, 1128, 1170, 1222, 1410, 1560, 1692, 1833, 1872, 1880, 2115, 2209, 2256, 2340, 2444, 2820, 3055, 3120, 3384, 3666, 3760, 4230, 4418, 4680, 4888, 5499, 5640, 6110, 6627, 6768, 7332, 8460, 8836, 9165, 9360, 9776, 10998, 11045, 11280, 12220, 13254, 14664, 16920, 17672, 18330, 19881, 21996, 22090, 24440, 26508, 27495, 28717, 29328, 33135, 33840, 35344, 36660, 39762, 43992, 44180, 48880, 53016, 54990, 57434, 66270, 73320, 79524, 86151, 87984, 88360, 99405, 106032, 109980, 114868, 132540, 143585, 146640, 159048, 172302, 176720, 198810, 219960, 229736, 258453, 265080, 287170, 318096, 344604, 397620, 430755, 439920, 459472, 516906, 530160, 574340, 689208, 795240, 861510, 1033812, 1148680, 1292265, 1378416, 1590480, 1723020, 2067624, 2297360, 2584530, 3446040, 4135248, 5169060, 6892080, 10338120, 20676240]

約数ペア:

[(1, 20676240), (2, 10338120), (3, 6892080), (4, 5169060), (5, 4135248), (6, 3446040), (8, 2584530), (9, 2297360), (10, 2067624), (12, 1723020), (13, 1590480), (15, 1378416), (16, 1292265), (18, 1148680), (20, 1033812), (24, 861510), (26, 795240), (30, 689208), (36, 574340), (39, 530160), (40, 516906), (45, 459472), (47, 439920), (48, 430755), (52, 397620), (60, 344604), (65, 318096), (72, 287170), (78, 265080), (80, 258453), (90, 229736), (94, 219960), (104, 198810), (117, 176720), (120, 172302), (130, 159048), (141, 146640), (144, 143585), (156, 132540), (180, 114868), (188, 109980), (195, 106032), (208, 99405), (234, 88360), (235, 87984), (240, 86151), (260, 79524), (282, 73320), (312, 66270), (360, 57434), (376, 54990), (390, 53016), (423, 48880), (468, 44180), (470, 43992), (520, 39762), (564, 36660), (585, 35344), (611, 33840), (624, 33135), (705, 29328), (720, 28717), (752, 27495), (780, 26508), (846, 24440), (936, 22090), (940, 21996), (1040, 19881), (1128, 18330), (1170, 17672), (1222, 16920), (1410, 14664), (1560, 13254), (1692, 12220), (1833, 11280), (1872, 11045), (1880, 10998), (2115, 9776), (2209, 9360), (2256, 9165), (2340, 8836), (2444, 8460), (2820, 7332), (3055, 6768), (3120, 6627), (3384, 6110), (3666, 5640), (3760, 5499), (4230, 4888), (4418, 4680)]