19987430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1783}}^1$

素因数の和:1868

約数の個数: 32

約数和(自身を含む): 38534400

約数和(自身を除く): 18546970

約数列:

[1, 2, 5, 10, 19, 38, 59, 95, 118, 190, 295, 590, 1121, 1783, 2242, 3566, 5605, 8915, 11210, 17830, 33877, 67754, 105197, 169385, 210394, 338770, 525985, 1051970, 1998743, 3997486, 9993715, 19987430]

約数ペア:

[(1, 19987430), (2, 9993715), (5, 3997486), (10, 1998743), (19, 1051970), (38, 525985), (59, 338770), (95, 210394), (118, 169385), (190, 105197), (295, 67754), (590, 33877), (1121, 17830), (1783, 11210), (2242, 8915), (3566, 5605)]