20545095

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 37822464

約数和(自身を除く): 17277369

約数列:

[1, 3, 5, 15, 17, 23, 31, 51, 69, 85, 93, 113, 115, 155, 255, 339, 345, 391, 465, 527, 565, 713, 1173, 1581, 1695, 1921, 1955, 2139, 2599, 2635, 3503, 3565, 5763, 5865, 7797, 7905, 9605, 10509, 10695, 12121, 12995, 17515, 28815, 36363, 38985, 44183, 52545, 59551, 60605, 80569, 132549, 178653, 181815, 220915, 241707, 297755, 402845, 662745, 893265, 1208535, 1369673, 4109019, 6848365, 20545095]

約数ペア:

[(1, 20545095), (3, 6848365), (5, 4109019), (15, 1369673), (17, 1208535), (23, 893265), (31, 662745), (51, 402845), (69, 297755), (85, 241707), (93, 220915), (113, 181815), (115, 178653), (155, 132549), (255, 80569), (339, 60605), (345, 59551), (391, 52545), (465, 44183), (527, 38985), (565, 36363), (713, 28815), (1173, 17515), (1581, 12995), (1695, 12121), (1921, 10695), (1955, 10509), (2139, 9605), (2599, 7905), (2635, 7797), (3503, 5865), (3565, 5763)]