320038880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{285749}}^1$

素因数の和:285771

約数の個数: 48

約数和(自身を含む): 864108000

約数和(自身を除く): 544069120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 285749, 571498, 1142996, 1428745, 2000243, 2285992, 2857490, 4000486, 4571984, 5714980, 8000972, 9143968, 10001215, 11429960, 16001944, 20002430, 22859920, 32003888, 40004860, 45719840, 64007776, 80009720, 160019440, 320038880]

約数ペア:

[(1, 320038880), (2, 160019440), (4, 80009720), (5, 64007776), (7, 45719840), (8, 40004860), (10, 32003888), (14, 22859920), (16, 20002430), (20, 16001944), (28, 11429960), (32, 10001215), (35, 9143968), (40, 8000972), (56, 5714980), (70, 4571984), (80, 4000486), (112, 2857490), (140, 2285992), (160, 2000243), (224, 1428745), (280, 1142996), (560, 571498), (1120, 285749)]