51771040

素因数分解:

$2^5\times 5^1\times {\mathrm{491}}^1\times {\mathrm{659}}^1$

素因数の和:1165

約数の個数: 48

約数和(自身を含む): 122744160

約数和(自身を除く): 70973120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 491, 659, 982, 1318, 1964, 2455, 2636, 3295, 3928, 4910, 5272, 6590, 7856, 9820, 10544, 13180, 15712, 19640, 21088, 26360, 39280, 52720, 78560, 105440, 323569, 647138, 1294276, 1617845, 2588552, 3235690, 5177104, 6471380, 10354208, 12942760, 25885520, 51771040]

約数ペア:

[(1, 51771040), (2, 25885520), (4, 12942760), (5, 10354208), (8, 6471380), (10, 5177104), (16, 3235690), (20, 2588552), (32, 1617845), (40, 1294276), (80, 647138), (160, 323569), (491, 105440), (659, 78560), (982, 52720), (1318, 39280), (1964, 26360), (2455, 21088), (2636, 19640), (3295, 15712), (3928, 13180), (4910, 10544), (5272, 9820), (6590, 7856)]