20181830116

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{35227}}^1$

素因数の和:35361

約数の個数: 72

約数和(自身を含む): 42730154880

約数和(自身を除く): 22548324764

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 79, 98, 148, 158, 196, 259, 316, 518, 553, 1036, 1106, 1813, 2212, 2923, 3626, 3871, 5846, 7252, 7742, 11692, 15484, 20461, 35227, 40922, 70454, 81844, 140908, 143227, 246589, 286454, 493178, 572908, 986356, 1303399, 1726123, 2606798, 2782933, 3452246, 5213596, 5565866, 6904492, 9123793, 11131732, 18247586, 19480531, 36495172, 38961062, 63866551, 77922124, 102968521, 127733102, 136363717, 205937042, 255466204, 272727434, 411874084, 545454868, 720779647, 1441559294, 2883118588, 5045457529, 10090915058, 20181830116]

約数ペア:

[(1, 20181830116), (2, 10090915058), (4, 5045457529), (7, 2883118588), (14, 1441559294), (28, 720779647), (37, 545454868), (49, 411874084), (74, 272727434), (79, 255466204), (98, 205937042), (148, 136363717), (158, 127733102), (196, 102968521), (259, 77922124), (316, 63866551), (518, 38961062), (553, 36495172), (1036, 19480531), (1106, 18247586), (1813, 11131732), (2212, 9123793), (2923, 6904492), (3626, 5565866), (3871, 5213596), (5846, 3452246), (7252, 2782933), (7742, 2606798), (11692, 1726123), (15484, 1303399), (20461, 986356), (35227, 572908), (40922, 493178), (70454, 286454), (81844, 246589), (140908, 143227)]