77596880

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15901}}^1$

素因数の和:15975

約数の個数: 40

約数和(自身を含む): 183381864

約数和(自身を除く): 105784984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 15901, 31802, 63604, 79505, 127208, 159010, 254416, 318020, 636040, 969961, 1272080, 1939922, 3879844, 4849805, 7759688, 9699610, 15519376, 19399220, 38798440, 77596880]

約数ペア:

[(1, 77596880), (2, 38798440), (4, 19399220), (5, 15519376), (8, 9699610), (10, 7759688), (16, 4849805), (20, 3879844), (40, 1939922), (61, 1272080), (80, 969961), (122, 636040), (244, 318020), (305, 254416), (488, 159010), (610, 127208), (976, 79505), (1220, 63604), (2440, 31802), (4880, 15901)]