20344920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9973}}^1$

素因数の和:10004

約数の個数: 64

約数和(自身を含む): 64631520

約数和(自身を除く): 44286600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 9973, 19946, 29919, 39892, 49865, 59838, 79784, 99730, 119676, 149595, 169541, 199460, 239352, 299190, 339082, 398920, 508623, 598380, 678164, 847705, 1017246, 1196760, 1356328, 1695410, 2034492, 2543115, 3390820, 4068984, 5086230, 6781640, 10172460, 20344920]

約数ペア:

[(1, 20344920), (2, 10172460), (3, 6781640), (4, 5086230), (5, 4068984), (6, 3390820), (8, 2543115), (10, 2034492), (12, 1695410), (15, 1356328), (17, 1196760), (20, 1017246), (24, 847705), (30, 678164), (34, 598380), (40, 508623), (51, 398920), (60, 339082), (68, 299190), (85, 239352), (102, 199460), (120, 169541), (136, 149595), (170, 119676), (204, 99730), (255, 79784), (340, 59838), (408, 49865), (510, 39892), (680, 29919), (1020, 19946), (2040, 9973)]