20175192016

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1\times {\mathrm{5323}}^1$

素因数の和:6168

約数の個数: 80

約数和(自身を含む): 45779244544

約数和(自身を除く): 25604052528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 787, 1204, 1574, 2408, 3148, 4816, 5323, 5509, 6296, 10646, 11018, 12592, 21292, 22036, 33841, 37261, 42584, 44072, 67682, 74522, 85168, 88144, 135364, 149044, 228889, 236887, 270728, 298088, 457778, 473774, 541456, 596176, 915556, 947548, 1602223, 1831112, 1895096, 3204446, 3662224, 3790192, 4189201, 6408892, 8378402, 12817784, 16756804, 25635568, 29324407, 33513608, 58648814, 67027216, 117297628, 180135643, 234595256, 360271286, 469190512, 720542572, 1260949501, 1441085144, 2521899002, 2882170288, 5043798004, 10087596008, 20175192016]

約数ペア:

[(1, 20175192016), (2, 10087596008), (4, 5043798004), (7, 2882170288), (8, 2521899002), (14, 1441085144), (16, 1260949501), (28, 720542572), (43, 469190512), (56, 360271286), (86, 234595256), (112, 180135643), (172, 117297628), (301, 67027216), (344, 58648814), (602, 33513608), (688, 29324407), (787, 25635568), (1204, 16756804), (1574, 12817784), (2408, 8378402), (3148, 6408892), (4816, 4189201), (5323, 3790192), (5509, 3662224), (6296, 3204446), (10646, 1895096), (11018, 1831112), (12592, 1602223), (21292, 947548), (22036, 915556), (33841, 596176), (37261, 541456), (42584, 473774), (44072, 457778), (67682, 298088), (74522, 270728), (85168, 236887), (88144, 228889), (135364, 149044)]