19863870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1$

素因数の和:138

約数の個数: 96

約数和(自身を含む): 54050976

約数和(自身を除く): 34187106

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 53, 62, 65, 78, 93, 106, 130, 155, 159, 186, 195, 265, 310, 318, 390, 403, 465, 530, 689, 795, 806, 930, 961, 1209, 1378, 1590, 1643, 1922, 2015, 2067, 2418, 2883, 3286, 3445, 4030, 4134, 4805, 4929, 5766, 6045, 6890, 8215, 9610, 9858, 10335, 12090, 12493, 14415, 16430, 20670, 21359, 24645, 24986, 28830, 37479, 42718, 49290, 50933, 62465, 64077, 74958, 101866, 106795, 124930, 128154, 152799, 187395, 213590, 254665, 305598, 320385, 374790, 509330, 640770, 662129, 763995, 1324258, 1527990, 1986387, 3310645, 3972774, 6621290, 9931935, 19863870]

約数ペア:

[(1, 19863870), (2, 9931935), (3, 6621290), (5, 3972774), (6, 3310645), (10, 1986387), (13, 1527990), (15, 1324258), (26, 763995), (30, 662129), (31, 640770), (39, 509330), (53, 374790), (62, 320385), (65, 305598), (78, 254665), (93, 213590), (106, 187395), (130, 152799), (155, 128154), (159, 124930), (186, 106795), (195, 101866), (265, 74958), (310, 64077), (318, 62465), (390, 50933), (403, 49290), (465, 42718), (530, 37479), (689, 28830), (795, 24986), (806, 24645), (930, 21359), (961, 20670), (1209, 16430), (1378, 14415), (1590, 12493), (1643, 12090), (1922, 10335), (2015, 9858), (2067, 9610), (2418, 8215), (2883, 6890), (3286, 6045), (3445, 5766), (4030, 4929), (4134, 4805)]