19138550

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 37564560

約数和(自身を除く): 18426010

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 67, 134, 145, 197, 290, 335, 394, 670, 725, 985, 1450, 1675, 1943, 1970, 3350, 3886, 4925, 5713, 9715, 9850, 11426, 13199, 19430, 26398, 28565, 48575, 57130, 65995, 97150, 131990, 142825, 285650, 329975, 382771, 659950, 765542, 1913855, 3827710, 9569275, 19138550]

約数ペア:

[(1, 19138550), (2, 9569275), (5, 3827710), (10, 1913855), (25, 765542), (29, 659950), (50, 382771), (58, 329975), (67, 285650), (134, 142825), (145, 131990), (197, 97150), (290, 65995), (335, 57130), (394, 48575), (670, 28565), (725, 26398), (985, 19430), (1450, 13199), (1675, 11426), (1943, 9850), (1970, 9715), (3350, 5713), (3886, 4925)]