19538270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 21519010

約数列:

[1, 2, 5, 10, 17, 19, 23, 34, 38, 46, 85, 95, 115, 170, 190, 230, 263, 323, 391, 437, 526, 646, 782, 874, 1315, 1615, 1955, 2185, 2630, 3230, 3910, 4370, 4471, 4997, 6049, 7429, 8942, 9994, 12098, 14858, 22355, 24985, 30245, 37145, 44710, 49970, 60490, 74290, 84949, 102833, 114931, 169898, 205666, 229862, 424745, 514165, 574655, 849490, 1028330, 1149310, 1953827, 3907654, 9769135, 19538270]

約数ペア:

[(1, 19538270), (2, 9769135), (5, 3907654), (10, 1953827), (17, 1149310), (19, 1028330), (23, 849490), (34, 574655), (38, 514165), (46, 424745), (85, 229862), (95, 205666), (115, 169898), (170, 114931), (190, 102833), (230, 84949), (263, 74290), (323, 60490), (391, 49970), (437, 44710), (526, 37145), (646, 30245), (782, 24985), (874, 22355), (1315, 14858), (1615, 12098), (1955, 9994), (2185, 8942), (2630, 7429), (3230, 6049), (3910, 4997), (4370, 4471)]