20127743984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1\times {\mathrm{1949}}^1$

素因数の和:2478

約数の個数: 80

約数和(自身を含む): 41225932800

約数和(自身を除く): 21098188816

約数列:

[1, 2, 4, 8, 16, 31, 47, 62, 94, 124, 188, 248, 376, 443, 496, 752, 886, 1457, 1772, 1949, 2914, 3544, 3898, 5828, 7088, 7796, 11656, 13733, 15592, 20821, 23312, 27466, 31184, 41642, 54932, 60419, 83284, 91603, 109864, 120838, 166568, 183206, 219728, 241676, 333136, 366412, 483352, 645451, 732824, 863407, 966704, 1290902, 1465648, 1726814, 2581804, 2839693, 3453628, 5163608, 5679386, 6907256, 10327216, 11358772, 13814512, 22717544, 26765617, 40580129, 45435088, 53531234, 81160258, 107062468, 162320516, 214124936, 324641032, 428249872, 649282064, 1257983999, 2515967998, 5031935996, 10063871992, 20127743984]

約数ペア:

[(1, 20127743984), (2, 10063871992), (4, 5031935996), (8, 2515967998), (16, 1257983999), (31, 649282064), (47, 428249872), (62, 324641032), (94, 214124936), (124, 162320516), (188, 107062468), (248, 81160258), (376, 53531234), (443, 45435088), (496, 40580129), (752, 26765617), (886, 22717544), (1457, 13814512), (1772, 11358772), (1949, 10327216), (2914, 6907256), (3544, 5679386), (3898, 5163608), (5828, 3453628), (7088, 2839693), (7796, 2581804), (11656, 1726814), (13733, 1465648), (15592, 1290902), (20821, 966704), (23312, 863407), (27466, 732824), (31184, 645451), (41642, 483352), (54932, 366412), (60419, 333136), (83284, 241676), (91603, 219728), (109864, 183206), (120838, 166568)]