20199571405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:571

約数の個数: 96

約数和(自身を含む): 28896860160

約数和(自身を除く): 8697288755

約数列:

[1, 5, 13, 23, 29, 47, 65, 115, 145, 235, 299, 377, 431, 529, 611, 667, 1081, 1363, 1495, 1885, 2155, 2645, 3055, 3335, 5405, 5603, 6815, 6877, 8671, 9913, 12499, 14053, 15341, 17719, 20257, 24863, 28015, 31349, 34385, 43355, 49565, 62495, 70265, 76705, 88595, 101285, 124315, 128869, 156745, 162487, 199433, 227999, 263341, 287477, 323219, 407537, 465911, 587453, 644345, 721027, 812435, 997165, 1139995, 1316705, 1437385, 1616095, 2037685, 2329555, 2937265, 2963987, 3605135, 3737201, 6056843, 6611971, 7636889, 9373351, 10715953, 13511419, 14819935, 18686005, 30284215, 33059855, 38184445, 46866755, 53579765, 67557095, 85955623, 139307389, 175648447, 310762637, 429778115, 696536945, 878242235, 1553813185, 4039914281, 20199571405]

約数ペア:

[(1, 20199571405), (5, 4039914281), (13, 1553813185), (23, 878242235), (29, 696536945), (47, 429778115), (65, 310762637), (115, 175648447), (145, 139307389), (235, 85955623), (299, 67557095), (377, 53579765), (431, 46866755), (529, 38184445), (611, 33059855), (667, 30284215), (1081, 18686005), (1363, 14819935), (1495, 13511419), (1885, 10715953), (2155, 9373351), (2645, 7636889), (3055, 6611971), (3335, 6056843), (5405, 3737201), (5603, 3605135), (6815, 2963987), (6877, 2937265), (8671, 2329555), (9913, 2037685), (12499, 1616095), (14053, 1437385), (15341, 1316705), (17719, 1139995), (20257, 997165), (24863, 812435), (28015, 721027), (31349, 644345), (34385, 587453), (43355, 465911), (49565, 407537), (62495, 323219), (70265, 287477), (76705, 263341), (88595, 227999), (101285, 199433), (124315, 162487), (128869, 156745)]