20392605

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 41783040

約数和(自身を除く): 21390435

約数列:

[1, 3, 5, 9, 15, 17, 19, 23, 45, 51, 57, 61, 69, 85, 95, 115, 153, 171, 183, 207, 255, 285, 305, 323, 345, 391, 437, 549, 765, 855, 915, 969, 1035, 1037, 1159, 1173, 1311, 1403, 1615, 1955, 2185, 2745, 2907, 3111, 3477, 3519, 3933, 4209, 4845, 5185, 5795, 5865, 6555, 7015, 7429, 9333, 10431, 12627, 14535, 15555, 17385, 17595, 19665, 19703, 21045, 22287, 23851, 26657, 37145, 46665, 52155, 59109, 63135, 66861, 71553, 79971, 98515, 111435, 119255, 133285, 177327, 214659, 239913, 295545, 334305, 357765, 399855, 453169, 886635, 1073295, 1199565, 1359507, 2265845, 4078521, 6797535, 20392605]

約数ペア:

[(1, 20392605), (3, 6797535), (5, 4078521), (9, 2265845), (15, 1359507), (17, 1199565), (19, 1073295), (23, 886635), (45, 453169), (51, 399855), (57, 357765), (61, 334305), (69, 295545), (85, 239913), (95, 214659), (115, 177327), (153, 133285), (171, 119255), (183, 111435), (207, 98515), (255, 79971), (285, 71553), (305, 66861), (323, 63135), (345, 59109), (391, 52155), (437, 46665), (549, 37145), (765, 26657), (855, 23851), (915, 22287), (969, 21045), (1035, 19703), (1037, 19665), (1159, 17595), (1173, 17385), (1311, 15555), (1403, 14535), (1615, 12627), (1955, 10431), (2185, 9333), (2745, 7429), (2907, 7015), (3111, 6555), (3477, 5865), (3519, 5795), (3933, 5185), (4209, 4845)]