19396820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{283}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 42940800

約数和(自身を除く): 23543980

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 149, 230, 283, 298, 460, 566, 596, 745, 1132, 1415, 1490, 2830, 2980, 3427, 5660, 6509, 6854, 13018, 13708, 17135, 26036, 32545, 34270, 42167, 65090, 68540, 84334, 130180, 168668, 210835, 421670, 843340, 969841, 1939682, 3879364, 4849205, 9698410, 19396820]

約数ペア:

[(1, 19396820), (2, 9698410), (4, 4849205), (5, 3879364), (10, 1939682), (20, 969841), (23, 843340), (46, 421670), (92, 210835), (115, 168668), (149, 130180), (230, 84334), (283, 68540), (298, 65090), (460, 42167), (566, 34270), (596, 32545), (745, 26036), (1132, 17135), (1415, 13708), (1490, 13018), (2830, 6854), (2980, 6509), (3427, 5660)]