385505380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{10667}}^1$

素因数の和:10828

約数の個数: 48

約数和(自身を含む): 878189760

約数和(自身を除く): 492684380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 2780, 3614, 7228, 9035, 10667, 18070, 21334, 36140, 42668, 53335, 106670, 138671, 213340, 277342, 554684, 693355, 1386710, 1482713, 2773420, 2965426, 5930852, 7413565, 14827130, 19275269, 29654260, 38550538, 77101076, 96376345, 192752690, 385505380]

約数ペア:

[(1, 385505380), (2, 192752690), (4, 96376345), (5, 77101076), (10, 38550538), (13, 29654260), (20, 19275269), (26, 14827130), (52, 7413565), (65, 5930852), (130, 2965426), (139, 2773420), (260, 1482713), (278, 1386710), (556, 693355), (695, 554684), (1390, 277342), (1807, 213340), (2780, 138671), (3614, 106670), (7228, 53335), (9035, 42668), (10667, 36140), (18070, 21334)]