19877325

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:111

約数の個数: 96

約数和(自身を含む): 39580800

約数和(自身を除く): 19703475

約数列:

[1, 3, 5, 13, 15, 19, 25, 29, 37, 39, 57, 65, 75, 87, 95, 111, 145, 185, 195, 247, 285, 325, 377, 435, 475, 481, 551, 555, 703, 725, 741, 925, 975, 1073, 1131, 1235, 1425, 1443, 1653, 1885, 2109, 2175, 2405, 2755, 2775, 3219, 3515, 3705, 5365, 5655, 6175, 7163, 7215, 8265, 9139, 9425, 10545, 12025, 13775, 13949, 16095, 17575, 18525, 20387, 21489, 26825, 27417, 28275, 35815, 36075, 41325, 41847, 45695, 52725, 61161, 69745, 80475, 101935, 107445, 137085, 179075, 209235, 228475, 265031, 305805, 348725, 509675, 537225, 685425, 795093, 1046175, 1325155, 1529025, 3975465, 6625775, 19877325]

約数ペア:

[(1, 19877325), (3, 6625775), (5, 3975465), (13, 1529025), (15, 1325155), (19, 1046175), (25, 795093), (29, 685425), (37, 537225), (39, 509675), (57, 348725), (65, 305805), (75, 265031), (87, 228475), (95, 209235), (111, 179075), (145, 137085), (185, 107445), (195, 101935), (247, 80475), (285, 69745), (325, 61161), (377, 52725), (435, 45695), (475, 41847), (481, 41325), (551, 36075), (555, 35815), (703, 28275), (725, 27417), (741, 26825), (925, 21489), (975, 20387), (1073, 18525), (1131, 17575), (1235, 16095), (1425, 13949), (1443, 13775), (1653, 12025), (1885, 10545), (2109, 9425), (2175, 9139), (2405, 8265), (2755, 7215), (2775, 7163), (3219, 6175), (3515, 5655), (3705, 5365)]