80646880

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8263}}^1$

素因数の和:8339

約数の個数: 48

約数和(自身を含む): 193675104

約数和(自身を除く): 113028224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2440, 4880, 8263, 9760, 16526, 33052, 41315, 66104, 82630, 132208, 165260, 264416, 330520, 504043, 661040, 1008086, 1322080, 2016172, 2520215, 4032344, 5040430, 8064688, 10080860, 16129376, 20161720, 40323440, 80646880]

約数ペア:

[(1, 80646880), (2, 40323440), (4, 20161720), (5, 16129376), (8, 10080860), (10, 8064688), (16, 5040430), (20, 4032344), (32, 2520215), (40, 2016172), (61, 1322080), (80, 1008086), (122, 661040), (160, 504043), (244, 330520), (305, 264416), (488, 165260), (610, 132208), (976, 82630), (1220, 66104), (1952, 41315), (2440, 33052), (4880, 16526), (8263, 9760)]