274247980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1\times {\mathrm{919}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 591655680

約数和(自身を除く): 317407700

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 347, 430, 694, 860, 919, 1388, 1735, 1838, 3470, 3676, 4595, 6940, 9190, 14921, 18380, 29842, 39517, 59684, 74605, 79034, 149210, 158068, 197585, 298420, 318893, 395170, 637786, 790340, 1275572, 1594465, 3188930, 6377860, 13712399, 27424798, 54849596, 68561995, 137123990, 274247980]

約数ペア:

[(1, 274247980), (2, 137123990), (4, 68561995), (5, 54849596), (10, 27424798), (20, 13712399), (43, 6377860), (86, 3188930), (172, 1594465), (215, 1275572), (347, 790340), (430, 637786), (694, 395170), (860, 318893), (919, 298420), (1388, 197585), (1735, 158068), (1838, 149210), (3470, 79034), (3676, 74605), (4595, 59684), (6940, 39517), (9190, 29842), (14921, 18380)]