209953420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{3659}}^1$

素因数の和:3838

約数の個数: 48

約数和(自身を含む): 467308800

約数和(自身を除く): 257355380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 151, 190, 302, 380, 604, 755, 1510, 2869, 3020, 3659, 5738, 7318, 11476, 14345, 14636, 18295, 28690, 36590, 57380, 69521, 73180, 139042, 278084, 347605, 552509, 695210, 1105018, 1390420, 2210036, 2762545, 5525090, 10497671, 11050180, 20995342, 41990684, 52488355, 104976710, 209953420]

約数ペア:

[(1, 209953420), (2, 104976710), (4, 52488355), (5, 41990684), (10, 20995342), (19, 11050180), (20, 10497671), (38, 5525090), (76, 2762545), (95, 2210036), (151, 1390420), (190, 1105018), (302, 695210), (380, 552509), (604, 347605), (755, 278084), (1510, 139042), (2869, 73180), (3020, 69521), (3659, 57380), (5738, 36590), (7318, 28690), (11476, 18295), (14345, 14636)]