18796980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:345

約数の個数: 96

約数和(自身を含む): 56173824

約数和(自身を除く): 37376844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 53, 60, 69, 92, 106, 115, 138, 159, 212, 230, 257, 265, 276, 318, 345, 460, 514, 530, 636, 690, 771, 795, 1028, 1060, 1219, 1285, 1380, 1542, 1590, 2438, 2570, 3084, 3180, 3657, 3855, 4876, 5140, 5911, 6095, 7314, 7710, 11822, 12190, 13621, 14628, 15420, 17733, 18285, 23644, 24380, 27242, 29555, 35466, 36570, 40863, 54484, 59110, 68105, 70932, 73140, 81726, 88665, 118220, 136210, 163452, 177330, 204315, 272420, 313283, 354660, 408630, 626566, 817260, 939849, 1253132, 1566415, 1879698, 3132830, 3759396, 4699245, 6265660, 9398490, 18796980]

約数ペア:

[(1, 18796980), (2, 9398490), (3, 6265660), (4, 4699245), (5, 3759396), (6, 3132830), (10, 1879698), (12, 1566415), (15, 1253132), (20, 939849), (23, 817260), (30, 626566), (46, 408630), (53, 354660), (60, 313283), (69, 272420), (92, 204315), (106, 177330), (115, 163452), (138, 136210), (159, 118220), (212, 88665), (230, 81726), (257, 73140), (265, 70932), (276, 68105), (318, 59110), (345, 54484), (460, 40863), (514, 36570), (530, 35466), (636, 29555), (690, 27242), (771, 24380), (795, 23644), (1028, 18285), (1060, 17733), (1219, 15420), (1285, 14628), (1380, 13621), (1542, 12190), (1590, 11822), (2438, 7710), (2570, 7314), (3084, 6095), (3180, 5911), (3657, 5140), (3855, 4876)]