19687920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11719}}^1$

素因数の和:11742

約数の個数: 80

約数和(自身を含む): 69757440

約数和(自身を除く): 50069520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11719, 23438, 35157, 46876, 58595, 70314, 82033, 93752, 117190, 140628, 164066, 175785, 187504, 234380, 246099, 281256, 328132, 351570, 410165, 468760, 492198, 562512, 656264, 703140, 820330, 937520, 984396, 1230495, 1312528, 1406280, 1640660, 1968792, 2460990, 2812560, 3281320, 3937584, 4921980, 6562640, 9843960, 19687920]

約数ペア:

[(1, 19687920), (2, 9843960), (3, 6562640), (4, 4921980), (5, 3937584), (6, 3281320), (7, 2812560), (8, 2460990), (10, 1968792), (12, 1640660), (14, 1406280), (15, 1312528), (16, 1230495), (20, 984396), (21, 937520), (24, 820330), (28, 703140), (30, 656264), (35, 562512), (40, 492198), (42, 468760), (48, 410165), (56, 351570), (60, 328132), (70, 281256), (80, 246099), (84, 234380), (105, 187504), (112, 175785), (120, 164066), (140, 140628), (168, 117190), (210, 93752), (240, 82033), (280, 70314), (336, 58595), (420, 46876), (560, 35157), (840, 23438), (1680, 11719)]