51138640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1723}}^1$

素因数の和:1796

約数の個数: 80

約数和(自身を含む): 138526848

約数和(自身を除く): 87388208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 742, 848, 1060, 1484, 1723, 1855, 2120, 2968, 3446, 3710, 4240, 5936, 6892, 7420, 8615, 12061, 13784, 14840, 17230, 24122, 27568, 29680, 34460, 48244, 60305, 68920, 91319, 96488, 120610, 137840, 182638, 192976, 241220, 365276, 456595, 482440, 639233, 730552, 913190, 964880, 1278466, 1461104, 1826380, 2556932, 3196165, 3652760, 5113864, 6392330, 7305520, 10227728, 12784660, 25569320, 51138640]

約数ペア:

[(1, 51138640), (2, 25569320), (4, 12784660), (5, 10227728), (7, 7305520), (8, 6392330), (10, 5113864), (14, 3652760), (16, 3196165), (20, 2556932), (28, 1826380), (35, 1461104), (40, 1278466), (53, 964880), (56, 913190), (70, 730552), (80, 639233), (106, 482440), (112, 456595), (140, 365276), (212, 241220), (265, 192976), (280, 182638), (371, 137840), (424, 120610), (530, 96488), (560, 91319), (742, 68920), (848, 60305), (1060, 48244), (1484, 34460), (1723, 29680), (1855, 27568), (2120, 24122), (2968, 17230), (3446, 14840), (3710, 13784), (4240, 12061), (5936, 8615), (6892, 7420)]