51938145

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:152

約数の個数: 128

約数和(自身を含む): 115706880

約数和(自身を除く): 63768735

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 53, 61, 63, 85, 105, 119, 135, 153, 159, 183, 189, 255, 265, 305, 315, 357, 371, 427, 459, 477, 549, 595, 765, 795, 901, 915, 945, 1037, 1071, 1113, 1281, 1431, 1647, 1785, 1855, 2135, 2295, 2385, 2703, 2745, 3111, 3213, 3233, 3339, 3843, 4505, 5185, 5355, 5565, 6307, 6405, 7155, 7259, 8109, 8235, 9333, 9699, 10017, 11529, 13515, 15555, 16065, 16165, 16695, 18921, 19215, 21777, 22631, 24327, 27999, 29097, 31535, 36295, 40545, 46665, 48495, 50085, 54961, 56763, 57645, 65331, 67893, 87291, 94605, 108885, 113155, 121635, 139995, 145485, 164883, 170289, 195993, 203679, 274805, 283815, 326655, 339465, 384727, 436455, 494649, 611037, 824415, 851445, 979965, 1018395, 1154181, 1483947, 1923635, 2473245, 3055185, 3462543, 5770905, 7419735, 10387629, 17312715, 51938145]

約数ペア:

[(1, 51938145), (3, 17312715), (5, 10387629), (7, 7419735), (9, 5770905), (15, 3462543), (17, 3055185), (21, 2473245), (27, 1923635), (35, 1483947), (45, 1154181), (51, 1018395), (53, 979965), (61, 851445), (63, 824415), (85, 611037), (105, 494649), (119, 436455), (135, 384727), (153, 339465), (159, 326655), (183, 283815), (189, 274805), (255, 203679), (265, 195993), (305, 170289), (315, 164883), (357, 145485), (371, 139995), (427, 121635), (459, 113155), (477, 108885), (549, 94605), (595, 87291), (765, 67893), (795, 65331), (901, 57645), (915, 56763), (945, 54961), (1037, 50085), (1071, 48495), (1113, 46665), (1281, 40545), (1431, 36295), (1647, 31535), (1785, 29097), (1855, 27999), (2135, 24327), (2295, 22631), (2385, 21777), (2703, 19215), (2745, 18921), (3111, 16695), (3213, 16165), (3233, 16065), (3339, 15555), (3843, 13515), (4505, 11529), (5185, 10017), (5355, 9699), (5565, 9333), (6307, 8235), (6405, 8109), (7155, 7259)]