61826720

素因数分解:

$2^5\times 5^1\times {\mathrm{491}}^1\times {\mathrm{787}}^1$

素因数の和:1293

約数の個数: 48

約数和(自身を含む): 146549088

約数和(自身を除く): 84722368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 491, 787, 982, 1574, 1964, 2455, 3148, 3928, 3935, 4910, 6296, 7856, 7870, 9820, 12592, 15712, 15740, 19640, 25184, 31480, 39280, 62960, 78560, 125920, 386417, 772834, 1545668, 1932085, 3091336, 3864170, 6182672, 7728340, 12365344, 15456680, 30913360, 61826720]

約数ペア:

[(1, 61826720), (2, 30913360), (4, 15456680), (5, 12365344), (8, 7728340), (10, 6182672), (16, 3864170), (20, 3091336), (32, 1932085), (40, 1545668), (80, 772834), (160, 386417), (491, 125920), (787, 78560), (982, 62960), (1574, 39280), (1964, 31480), (2455, 25184), (3148, 19640), (3928, 15740), (3935, 15712), (4910, 12592), (6296, 9820), (7856, 7870)]