268577855

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{2647}}^1$

素因数の和:2895

約数の個数: 32

約数和(自身を含む): 398598144

約数和(自身を除く): 130020289

約数列:

[1, 5, 7, 13, 35, 65, 91, 223, 455, 1115, 1561, 2647, 2899, 7805, 13235, 14495, 18529, 20293, 34411, 92645, 101465, 172055, 240877, 590281, 1204385, 2951405, 4131967, 7673653, 20659835, 38368265, 53715571, 268577855]

約数ペア:

[(1, 268577855), (5, 53715571), (7, 38368265), (13, 20659835), (35, 7673653), (65, 4131967), (91, 2951405), (223, 1204385), (455, 590281), (1115, 240877), (1561, 172055), (2647, 101465), (2899, 92645), (7805, 34411), (13235, 20293), (14495, 18529)]