64574380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{809}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 146694240

約数和(自身を除く): 82119860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307, 614, 809, 1228, 1535, 1618, 3070, 3236, 3991, 4045, 6140, 7982, 8090, 10517, 15964, 16180, 19955, 21034, 39910, 42068, 52585, 79820, 105170, 210340, 248363, 496726, 993452, 1241815, 2483630, 3228719, 4967260, 6457438, 12914876, 16143595, 32287190, 64574380]

約数ペア:

[(1, 64574380), (2, 32287190), (4, 16143595), (5, 12914876), (10, 6457438), (13, 4967260), (20, 3228719), (26, 2483630), (52, 1241815), (65, 993452), (130, 496726), (260, 248363), (307, 210340), (614, 105170), (809, 79820), (1228, 52585), (1535, 42068), (1618, 39910), (3070, 21034), (3236, 19955), (3991, 16180), (4045, 15964), (6140, 10517), (7982, 8090)]