20785872

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:332

約数の個数: 80

約数和(自身を含む): 56583680

約数和(自身を除く): 35797808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 61, 62, 93, 122, 124, 183, 186, 229, 244, 248, 366, 372, 458, 488, 496, 687, 732, 744, 916, 976, 1374, 1464, 1488, 1832, 1891, 2748, 2928, 3664, 3782, 5496, 5673, 7099, 7564, 10992, 11346, 13969, 14198, 15128, 21297, 22692, 27938, 28396, 30256, 41907, 42594, 45384, 55876, 56792, 83814, 85188, 90768, 111752, 113584, 167628, 170376, 223504, 335256, 340752, 433039, 670512, 866078, 1299117, 1732156, 2598234, 3464312, 5196468, 6928624, 10392936, 20785872]

約数ペア:

[(1, 20785872), (2, 10392936), (3, 6928624), (4, 5196468), (6, 3464312), (8, 2598234), (12, 1732156), (16, 1299117), (24, 866078), (31, 670512), (48, 433039), (61, 340752), (62, 335256), (93, 223504), (122, 170376), (124, 167628), (183, 113584), (186, 111752), (229, 90768), (244, 85188), (248, 83814), (366, 56792), (372, 55876), (458, 45384), (488, 42594), (496, 41907), (687, 30256), (732, 28396), (744, 27938), (916, 22692), (976, 21297), (1374, 15128), (1464, 14198), (1488, 13969), (1832, 11346), (1891, 10992), (2748, 7564), (2928, 7099), (3664, 5673), (3782, 5496)]