20791728

素因数分解:

$2^4\times 3^4\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:344

約数の個数: 100

約数和(自身を含む): 61396368

約数和(自身を除く): 40604640

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 61, 72, 81, 108, 122, 144, 162, 183, 216, 244, 263, 324, 366, 432, 488, 526, 549, 648, 732, 789, 976, 1052, 1098, 1296, 1464, 1578, 1647, 2104, 2196, 2367, 2928, 3156, 3294, 4208, 4392, 4734, 4941, 6312, 6588, 7101, 8784, 9468, 9882, 12624, 13176, 14202, 16043, 18936, 19764, 21303, 26352, 28404, 32086, 37872, 39528, 42606, 48129, 56808, 64172, 79056, 85212, 96258, 113616, 128344, 144387, 170424, 192516, 256688, 288774, 340848, 385032, 433161, 577548, 770064, 866322, 1155096, 1299483, 1732644, 2310192, 2598966, 3465288, 5197932, 6930576, 10395864, 20791728]

約数ペア:

[(1, 20791728), (2, 10395864), (3, 6930576), (4, 5197932), (6, 3465288), (8, 2598966), (9, 2310192), (12, 1732644), (16, 1299483), (18, 1155096), (24, 866322), (27, 770064), (36, 577548), (48, 433161), (54, 385032), (61, 340848), (72, 288774), (81, 256688), (108, 192516), (122, 170424), (144, 144387), (162, 128344), (183, 113616), (216, 96258), (244, 85212), (263, 79056), (324, 64172), (366, 56808), (432, 48129), (488, 42606), (526, 39528), (549, 37872), (648, 32086), (732, 28404), (789, 26352), (976, 21303), (1052, 19764), (1098, 18936), (1296, 16043), (1464, 14202), (1578, 13176), (1647, 12624), (2104, 9882), (2196, 9468), (2367, 8784), (2928, 7101), (3156, 6588), (3294, 6312), (4208, 4941), (4392, 4734)]