20622420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1259}}^1$

素因数の和:1294

約数の個数: 144

約数和(自身を含む): 77051520

約数和(自身を除く): 56429100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1259, 1260, 1365, 1638, 1820, 2340, 2518, 2730, 3276, 3777, 4095, 5036, 5460, 6295, 7554, 8190, 8813, 11331, 12590, 15108, 16367, 16380, 17626, 18885, 22662, 25180, 26439, 32734, 35252, 37770, 44065, 45324, 49101, 52878, 56655, 65468, 75540, 79317, 81835, 88130, 98202, 105756, 113310, 114569, 132195, 147303, 158634, 163670, 176260, 196404, 226620, 229138, 245505, 264390, 294606, 317268, 327340, 343707, 396585, 458276, 491010, 528780, 572845, 589212, 687414, 736515, 793170, 982020, 1031121, 1145690, 1374828, 1473030, 1586340, 1718535, 2062242, 2291380, 2946060, 3437070, 4124484, 5155605, 6874140, 10311210, 20622420]

約数ペア:

[(1, 20622420), (2, 10311210), (3, 6874140), (4, 5155605), (5, 4124484), (6, 3437070), (7, 2946060), (9, 2291380), (10, 2062242), (12, 1718535), (13, 1586340), (14, 1473030), (15, 1374828), (18, 1145690), (20, 1031121), (21, 982020), (26, 793170), (28, 736515), (30, 687414), (35, 589212), (36, 572845), (39, 528780), (42, 491010), (45, 458276), (52, 396585), (60, 343707), (63, 327340), (65, 317268), (70, 294606), (78, 264390), (84, 245505), (90, 229138), (91, 226620), (105, 196404), (117, 176260), (126, 163670), (130, 158634), (140, 147303), (156, 132195), (180, 114569), (182, 113310), (195, 105756), (210, 98202), (234, 88130), (252, 81835), (260, 79317), (273, 75540), (315, 65468), (364, 56655), (390, 52878), (420, 49101), (455, 45324), (468, 44065), (546, 37770), (585, 35252), (630, 32734), (780, 26439), (819, 25180), (910, 22662), (1092, 18885), (1170, 17626), (1259, 16380), (1260, 16367), (1365, 15108), (1638, 12590), (1820, 11331), (2340, 8813), (2518, 8190), (2730, 7554), (3276, 6295), (3777, 5460), (4095, 5036)]