39640840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1213}}^1$

素因数の和:1286

約数の個数: 64

約数和(自身を含む): 96148800

約数和(自身を除く): 56507960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1213, 1634, 1720, 2426, 3268, 4085, 4852, 6065, 6536, 8170, 9704, 12130, 16340, 23047, 24260, 32680, 46094, 48520, 52159, 92188, 104318, 115235, 184376, 208636, 230470, 260795, 417272, 460940, 521590, 921880, 991021, 1043180, 1982042, 2086360, 3964084, 4955105, 7928168, 9910210, 19820420, 39640840]

約数ペア:

[(1, 39640840), (2, 19820420), (4, 9910210), (5, 7928168), (8, 4955105), (10, 3964084), (19, 2086360), (20, 1982042), (38, 1043180), (40, 991021), (43, 921880), (76, 521590), (86, 460940), (95, 417272), (152, 260795), (172, 230470), (190, 208636), (215, 184376), (344, 115235), (380, 104318), (430, 92188), (760, 52159), (817, 48520), (860, 46094), (1213, 32680), (1634, 24260), (1720, 23047), (2426, 16340), (3268, 12130), (4085, 9704), (4852, 8170), (6065, 6536)]