20164534288

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{292477}}^1$

素因数の和:292655

約数の個数: 40

約数和(自身を含む): 40619344640

約数和(自身を除く): 20454810352

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 139, 248, 278, 496, 556, 1112, 2224, 4309, 8618, 17236, 34472, 68944, 292477, 584954, 1169908, 2339816, 4679632, 9066787, 18133574, 36267148, 40654303, 72534296, 81308606, 145068592, 162617212, 325234424, 650468848, 1260283393, 2520566786, 5041133572, 10082267144, 20164534288]

約数ペア:

[(1, 20164534288), (2, 10082267144), (4, 5041133572), (8, 2520566786), (16, 1260283393), (31, 650468848), (62, 325234424), (124, 162617212), (139, 145068592), (248, 81308606), (278, 72534296), (496, 40654303), (556, 36267148), (1112, 18133574), (2224, 9066787), (4309, 4679632), (8618, 2339816), (17236, 1169908), (34472, 584954), (68944, 292477)]