80901860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{5101}}^1$

素因数の和:5184

約数の個数: 48

約数和(自身を含む): 185998512

約数和(自身を除く): 105096652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 5101, 7930, 10202, 15860, 20404, 25505, 51010, 66313, 102020, 132626, 265252, 311161, 331565, 622322, 663130, 1244644, 1326260, 1555805, 3111610, 4045093, 6223220, 8090186, 16180372, 20225465, 40450930, 80901860]

約数ペア:

[(1, 80901860), (2, 40450930), (4, 20225465), (5, 16180372), (10, 8090186), (13, 6223220), (20, 4045093), (26, 3111610), (52, 1555805), (61, 1326260), (65, 1244644), (122, 663130), (130, 622322), (244, 331565), (260, 311161), (305, 265252), (610, 132626), (793, 102020), (1220, 66313), (1586, 51010), (3172, 25505), (3965, 20404), (5101, 15860), (7930, 10202)]