255688420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{7507}}^1$

素因数の和:7660

約数の個数: 48

約数和(自身を含む): 582740928

約数和(自身を除く): 327052508

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 1310, 1703, 2620, 3406, 6812, 7507, 8515, 15014, 17030, 30028, 34060, 37535, 75070, 97591, 150140, 195182, 390364, 487955, 975910, 983417, 1951820, 1966834, 3933668, 4917085, 9834170, 12784421, 19668340, 25568842, 51137684, 63922105, 127844210, 255688420]

約数ペア:

[(1, 255688420), (2, 127844210), (4, 63922105), (5, 51137684), (10, 25568842), (13, 19668340), (20, 12784421), (26, 9834170), (52, 4917085), (65, 3933668), (130, 1966834), (131, 1951820), (260, 983417), (262, 975910), (524, 487955), (655, 390364), (1310, 195182), (1703, 150140), (2620, 97591), (3406, 75070), (6812, 37535), (7507, 34060), (8515, 30028), (15014, 17030)]