42978100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 103118400

約数和(自身を除く): 60140300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 89, 100, 110, 178, 220, 275, 356, 439, 445, 550, 878, 890, 979, 1100, 1756, 1780, 1958, 2195, 2225, 3916, 4390, 4450, 4829, 4895, 8780, 8900, 9658, 9790, 10975, 19316, 19580, 21950, 24145, 24475, 39071, 43900, 48290, 48950, 78142, 96580, 97900, 120725, 156284, 195355, 241450, 390710, 429781, 482900, 781420, 859562, 976775, 1719124, 1953550, 2148905, 3907100, 4297810, 8595620, 10744525, 21489050, 42978100]

約数ペア:

[(1, 42978100), (2, 21489050), (4, 10744525), (5, 8595620), (10, 4297810), (11, 3907100), (20, 2148905), (22, 1953550), (25, 1719124), (44, 976775), (50, 859562), (55, 781420), (89, 482900), (100, 429781), (110, 390710), (178, 241450), (220, 195355), (275, 156284), (356, 120725), (439, 97900), (445, 96580), (550, 78142), (878, 48950), (890, 48290), (979, 43900), (1100, 39071), (1756, 24475), (1780, 24145), (1958, 21950), (2195, 19580), (2225, 19316), (3916, 10975), (4390, 9790), (4450, 9658), (4829, 8900), (4895, 8780)]