1901472883940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{5087}}^1\times {\mathrm{381419}}^1$

素因数の和:386529

約数の個数: 72

約数和(自身を含む): 4645951914240

約数和(自身を除く): 2744479030300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 5087, 10174, 20348, 25435, 35609, 50870, 71218, 101740, 142436, 178045, 249263, 356090, 381419, 498526, 712180, 762838, 997052, 1246315, 1525676, 1907095, 2492630, 2669933, 3814190, 4985260, 5339866, 7628380, 10679732, 13349665, 18689531, 26699330, 37379062, 53398660, 74758124, 93447655, 186895310, 373790620, 1940278453, 3880556906, 7761113812, 9701392265, 13581949171, 19402784530, 27163898342, 38805569060, 54327796684, 67909745855, 95073644197, 135819491710, 190147288394, 271638983420, 380294576788, 475368220985, 950736441970, 1901472883940]

約数ペア:

[(1, 1901472883940), (2, 950736441970), (4, 475368220985), (5, 380294576788), (7, 271638983420), (10, 190147288394), (14, 135819491710), (20, 95073644197), (28, 67909745855), (35, 54327796684), (49, 38805569060), (70, 27163898342), (98, 19402784530), (140, 13581949171), (196, 9701392265), (245, 7761113812), (490, 3880556906), (980, 1940278453), (5087, 373790620), (10174, 186895310), (20348, 93447655), (25435, 74758124), (35609, 53398660), (50870, 37379062), (71218, 26699330), (101740, 18689531), (142436, 13349665), (178045, 10679732), (249263, 7628380), (356090, 5339866), (381419, 4985260), (498526, 3814190), (712180, 2669933), (762838, 2492630), (997052, 1907095), (1246315, 1525676)]