19420204

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 37497600

約数和(自身を除く): 18077396

約数列:

[1, 2, 4, 19, 38, 59, 61, 71, 76, 118, 122, 142, 236, 244, 284, 1121, 1159, 1349, 2242, 2318, 2698, 3599, 4189, 4331, 4484, 4636, 5396, 7198, 8378, 8662, 14396, 16756, 17324, 68381, 79591, 82289, 136762, 159182, 164578, 255529, 273524, 318364, 329156, 511058, 1022116, 4855051, 9710102, 19420204]

約数ペア:

[(1, 19420204), (2, 9710102), (4, 4855051), (19, 1022116), (38, 511058), (59, 329156), (61, 318364), (71, 273524), (76, 255529), (118, 164578), (122, 159182), (142, 136762), (236, 82289), (244, 79591), (284, 68381), (1121, 17324), (1159, 16756), (1349, 14396), (2242, 8662), (2318, 8378), (2698, 7198), (3599, 5396), (4189, 4636), (4331, 4484)]