20337975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 42879200

約数和(自身を除く): 22541225

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 37, 45, 63, 75, 105, 111, 175, 185, 225, 259, 315, 333, 349, 525, 555, 777, 925, 1047, 1295, 1575, 1665, 1745, 2331, 2443, 2775, 3141, 3885, 5235, 6475, 7329, 8325, 8725, 11655, 12215, 12913, 15705, 19425, 21987, 26175, 36645, 38739, 58275, 61075, 64565, 78525, 90391, 109935, 116217, 183225, 193695, 271173, 322825, 451955, 549675, 581085, 813519, 968475, 1355865, 2259775, 2905425, 4067595, 6779325, 20337975]

約数ペア:

[(1, 20337975), (3, 6779325), (5, 4067595), (7, 2905425), (9, 2259775), (15, 1355865), (21, 968475), (25, 813519), (35, 581085), (37, 549675), (45, 451955), (63, 322825), (75, 271173), (105, 193695), (111, 183225), (175, 116217), (185, 109935), (225, 90391), (259, 78525), (315, 64565), (333, 61075), (349, 58275), (525, 38739), (555, 36645), (777, 26175), (925, 21987), (1047, 19425), (1295, 15705), (1575, 12913), (1665, 12215), (1745, 11655), (2331, 8725), (2443, 8325), (2775, 7329), (3141, 6475), (3885, 5235)]