20389710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:210

約数の個数: 96

約数和(自身を含む): 55502496

約数和(自身を除く): 35112786

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 41, 55, 66, 82, 110, 121, 123, 137, 165, 205, 242, 246, 274, 330, 363, 410, 411, 451, 605, 615, 685, 726, 822, 902, 1210, 1230, 1353, 1370, 1507, 1815, 2055, 2255, 2706, 3014, 3630, 4110, 4510, 4521, 4961, 5617, 6765, 7535, 9042, 9922, 11234, 13530, 14883, 15070, 16577, 16851, 22605, 24805, 28085, 29766, 33154, 33702, 45210, 49610, 49731, 56170, 61787, 74415, 82885, 84255, 99462, 123574, 148830, 165770, 168510, 185361, 248655, 308935, 370722, 497310, 617870, 679657, 926805, 1359314, 1853610, 2038971, 3398285, 4077942, 6796570, 10194855, 20389710]

約数ペア:

[(1, 20389710), (2, 10194855), (3, 6796570), (5, 4077942), (6, 3398285), (10, 2038971), (11, 1853610), (15, 1359314), (22, 926805), (30, 679657), (33, 617870), (41, 497310), (55, 370722), (66, 308935), (82, 248655), (110, 185361), (121, 168510), (123, 165770), (137, 148830), (165, 123574), (205, 99462), (242, 84255), (246, 82885), (274, 74415), (330, 61787), (363, 56170), (410, 49731), (411, 49610), (451, 45210), (605, 33702), (615, 33154), (685, 29766), (726, 28085), (822, 24805), (902, 22605), (1210, 16851), (1230, 16577), (1353, 15070), (1370, 14883), (1507, 13530), (1815, 11234), (2055, 9922), (2255, 9042), (2706, 7535), (3014, 6765), (3630, 5617), (4110, 4961), (4510, 4521)]