20948480

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{167}}^1$

素因数の和:204

約数の個数: 120

約数和(自身を含む): 58777488

約数和(自身を除く): 37829008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 167, 196, 224, 245, 256, 280, 320, 334, 392, 448, 490, 512, 560, 640, 668, 784, 835, 896, 980, 1120, 1169, 1280, 1336, 1568, 1670, 1792, 1960, 2240, 2338, 2560, 2672, 3136, 3340, 3584, 3920, 4480, 4676, 5344, 5845, 6272, 6680, 7840, 8183, 8960, 9352, 10688, 11690, 12544, 13360, 15680, 16366, 17920, 18704, 21376, 23380, 25088, 26720, 31360, 32732, 37408, 40915, 42752, 46760, 53440, 62720, 65464, 74816, 81830, 85504, 93520, 106880, 125440, 130928, 149632, 163660, 187040, 213760, 261856, 299264, 327320, 374080, 427520, 523712, 598528, 654640, 748160, 1047424, 1309280, 1496320, 2094848, 2618560, 2992640, 4189696, 5237120, 10474240, 20948480]

約数ペア:

[(1, 20948480), (2, 10474240), (4, 5237120), (5, 4189696), (7, 2992640), (8, 2618560), (10, 2094848), (14, 1496320), (16, 1309280), (20, 1047424), (28, 748160), (32, 654640), (35, 598528), (40, 523712), (49, 427520), (56, 374080), (64, 327320), (70, 299264), (80, 261856), (98, 213760), (112, 187040), (128, 163660), (140, 149632), (160, 130928), (167, 125440), (196, 106880), (224, 93520), (245, 85504), (256, 81830), (280, 74816), (320, 65464), (334, 62720), (392, 53440), (448, 46760), (490, 42752), (512, 40915), (560, 37408), (640, 32732), (668, 31360), (784, 26720), (835, 25088), (896, 23380), (980, 21376), (1120, 18704), (1169, 17920), (1280, 16366), (1336, 15680), (1568, 13360), (1670, 12544), (1792, 11690), (1960, 10688), (2240, 9352), (2338, 8960), (2560, 8183), (2672, 7840), (3136, 6680), (3340, 6272), (3584, 5845), (3920, 5344), (4480, 4676)]