20156819025

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{457}}^1\times {\mathrm{2897}}^1$

素因数の和:3403

約数の個数: 96

約数和(自身を含む): 39499971840

約数和(自身を除く): 19343152815

約数列:

[1, 3, 5, 7, 15, 21, 25, 29, 35, 75, 87, 105, 145, 175, 203, 435, 457, 525, 609, 725, 1015, 1371, 2175, 2285, 2897, 3045, 3199, 5075, 6855, 8691, 9597, 11425, 13253, 14485, 15225, 15995, 20279, 34275, 39759, 43455, 47985, 60837, 66265, 72425, 79975, 84013, 92771, 101395, 198795, 217275, 239925, 252039, 278313, 304185, 331325, 420065, 463855, 506975, 588091, 993975, 1260195, 1323929, 1391565, 1520925, 1764273, 2100325, 2319275, 2940455, 3971787, 6300975, 6619645, 6957825, 8821365, 9267503, 14702275, 19858935, 27802509, 33098225, 38393941, 44106825, 46337515, 99294675, 115181823, 139012545, 191969705, 231687575, 268757587, 575909115, 695062725, 806272761, 959848525, 1343787935, 2879545575, 4031363805, 6718939675, 20156819025]

約数ペア:

[(1, 20156819025), (3, 6718939675), (5, 4031363805), (7, 2879545575), (15, 1343787935), (21, 959848525), (25, 806272761), (29, 695062725), (35, 575909115), (75, 268757587), (87, 231687575), (105, 191969705), (145, 139012545), (175, 115181823), (203, 99294675), (435, 46337515), (457, 44106825), (525, 38393941), (609, 33098225), (725, 27802509), (1015, 19858935), (1371, 14702275), (2175, 9267503), (2285, 8821365), (2897, 6957825), (3045, 6619645), (3199, 6300975), (5075, 3971787), (6855, 2940455), (8691, 2319275), (9597, 2100325), (11425, 1764273), (13253, 1520925), (14485, 1391565), (15225, 1323929), (15995, 1260195), (20279, 993975), (34275, 588091), (39759, 506975), (43455, 463855), (47985, 420065), (60837, 331325), (66265, 304185), (72425, 278313), (79975, 252039), (84013, 239925), (92771, 217275), (101395, 198795)]