39840920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20327}}^1$

素因数の和:20352

約数の個数: 48

約数和(自身を含む): 104282640

約数和(自身を除く): 64441720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 20327, 40654, 81308, 101635, 142289, 162616, 203270, 284578, 406540, 569156, 711445, 813080, 996023, 1138312, 1422890, 1992046, 2845780, 3984092, 4980115, 5691560, 7968184, 9960230, 19920460, 39840920]

約数ペア:

[(1, 39840920), (2, 19920460), (4, 9960230), (5, 7968184), (7, 5691560), (8, 4980115), (10, 3984092), (14, 2845780), (20, 1992046), (28, 1422890), (35, 1138312), (40, 996023), (49, 813080), (56, 711445), (70, 569156), (98, 406540), (140, 284578), (196, 203270), (245, 162616), (280, 142289), (392, 101635), (490, 81308), (980, 40654), (1960, 20327)]