20730502016

素因数分解:

$2^7\times 7^1\times {\mathrm{409}}^1\times {\mathrm{56569}}^1$

素因数の和:56999

約数の個数: 64

約数和(自身を含む): 47315148000

約数和(自身を除く): 26584645984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 409, 448, 818, 896, 1636, 2863, 3272, 5726, 6544, 11452, 13088, 22904, 26176, 45808, 52352, 56569, 91616, 113138, 183232, 226276, 366464, 395983, 452552, 791966, 905104, 1583932, 1810208, 3167864, 3620416, 6335728, 7240832, 12671456, 23136721, 25342912, 46273442, 50685824, 92546884, 161957047, 185093768, 323914094, 370187536, 647828188, 740375072, 1295656376, 1480750144, 2591312752, 2961500288, 5182625504, 10365251008, 20730502016]

約数ペア:

[(1, 20730502016), (2, 10365251008), (4, 5182625504), (7, 2961500288), (8, 2591312752), (14, 1480750144), (16, 1295656376), (28, 740375072), (32, 647828188), (56, 370187536), (64, 323914094), (112, 185093768), (128, 161957047), (224, 92546884), (409, 50685824), (448, 46273442), (818, 25342912), (896, 23136721), (1636, 12671456), (2863, 7240832), (3272, 6335728), (5726, 3620416), (6544, 3167864), (11452, 1810208), (13088, 1583932), (22904, 905104), (26176, 791966), (45808, 452552), (52352, 395983), (56569, 366464), (91616, 226276), (113138, 183232)]