49503280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{19961}}^1$

素因数の和:20005

約数の個数: 40

約数和(自身を含む): 118813824

約数和(自身を除く): 69310544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 19961, 39922, 79844, 99805, 159688, 199610, 319376, 399220, 618791, 798440, 1237582, 1596880, 2475164, 3093955, 4950328, 6187910, 9900656, 12375820, 24751640, 49503280]

約数ペア:

[(1, 49503280), (2, 24751640), (4, 12375820), (5, 9900656), (8, 6187910), (10, 4950328), (16, 3093955), (20, 2475164), (31, 1596880), (40, 1237582), (62, 798440), (80, 618791), (124, 399220), (155, 319376), (248, 199610), (310, 159688), (496, 99805), (620, 79844), (1240, 39922), (2480, 19961)]