38440640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{131}}^2$

素因数の和:286

約数の個数: 84

約数和(自身を含む): 105418128

約数和(自身を除く): 66977488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 131, 140, 160, 224, 262, 280, 320, 448, 524, 560, 655, 917, 1048, 1120, 1310, 1834, 2096, 2240, 2620, 3668, 4192, 4585, 5240, 7336, 8384, 9170, 10480, 14672, 17161, 18340, 20960, 29344, 34322, 36680, 41920, 58688, 68644, 73360, 85805, 120127, 137288, 146720, 171610, 240254, 274576, 293440, 343220, 480508, 549152, 600635, 686440, 961016, 1098304, 1201270, 1372880, 1922032, 2402540, 2745760, 3844064, 4805080, 5491520, 7688128, 9610160, 19220320, 38440640]

約数ペア:

[(1, 38440640), (2, 19220320), (4, 9610160), (5, 7688128), (7, 5491520), (8, 4805080), (10, 3844064), (14, 2745760), (16, 2402540), (20, 1922032), (28, 1372880), (32, 1201270), (35, 1098304), (40, 961016), (56, 686440), (64, 600635), (70, 549152), (80, 480508), (112, 343220), (131, 293440), (140, 274576), (160, 240254), (224, 171610), (262, 146720), (280, 137288), (320, 120127), (448, 85805), (524, 73360), (560, 68644), (655, 58688), (917, 41920), (1048, 36680), (1120, 34322), (1310, 29344), (1834, 20960), (2096, 18340), (2240, 17161), (2620, 14672), (3668, 10480), (4192, 9170), (4585, 8384), (5240, 7336)]