20178780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11597}}^1$

素因数の和:11638

約数の個数: 48

約数和(自身を含む): 58453920

約数和(自身を除く): 38275140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 11597, 23194, 34791, 46388, 57985, 69582, 115970, 139164, 173955, 231940, 336313, 347910, 672626, 695820, 1008939, 1345252, 1681565, 2017878, 3363130, 4035756, 5044695, 6726260, 10089390, 20178780]

約数ペア:

[(1, 20178780), (2, 10089390), (3, 6726260), (4, 5044695), (5, 4035756), (6, 3363130), (10, 2017878), (12, 1681565), (15, 1345252), (20, 1008939), (29, 695820), (30, 672626), (58, 347910), (60, 336313), (87, 231940), (116, 173955), (145, 139164), (174, 115970), (290, 69582), (348, 57985), (435, 46388), (580, 34791), (870, 23194), (1740, 11597)]