19395770

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 20002630

約数列:

[1, 2, 5, 10, 19, 31, 37, 38, 62, 74, 89, 95, 155, 178, 185, 190, 310, 370, 445, 589, 703, 890, 1147, 1178, 1406, 1691, 2294, 2759, 2945, 3293, 3382, 3515, 5518, 5735, 5890, 6586, 7030, 8455, 11470, 13795, 16465, 16910, 21793, 27590, 32930, 43586, 52421, 62567, 102083, 104842, 108965, 125134, 204166, 217930, 262105, 312835, 510415, 524210, 625670, 1020830, 1939577, 3879154, 9697885, 19395770]

約数ペア:

[(1, 19395770), (2, 9697885), (5, 3879154), (10, 1939577), (19, 1020830), (31, 625670), (37, 524210), (38, 510415), (62, 312835), (74, 262105), (89, 217930), (95, 204166), (155, 125134), (178, 108965), (185, 104842), (190, 102083), (310, 62567), (370, 52421), (445, 43586), (589, 32930), (703, 27590), (890, 21793), (1147, 16910), (1178, 16465), (1406, 13795), (1691, 11470), (2294, 8455), (2759, 7030), (2945, 6586), (3293, 5890), (3382, 5735), (3515, 5518)]