19751900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:196

約数の個数: 108

約数和(自身を含む): 51949800

約数和(自身を除く): 32197900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 49, 50, 58, 70, 98, 100, 116, 139, 140, 145, 175, 196, 203, 245, 278, 290, 350, 406, 490, 556, 580, 695, 700, 725, 812, 973, 980, 1015, 1225, 1390, 1421, 1450, 1946, 2030, 2450, 2780, 2842, 2900, 3475, 3892, 4031, 4060, 4865, 4900, 5075, 5684, 6811, 6950, 7105, 8062, 9730, 10150, 13622, 13900, 14210, 16124, 19460, 20155, 20300, 24325, 27244, 28217, 28420, 34055, 35525, 40310, 48650, 56434, 68110, 71050, 80620, 97300, 100775, 112868, 136220, 141085, 142100, 170275, 197519, 201550, 282170, 340550, 395038, 403100, 564340, 681100, 705425, 790076, 987595, 1410850, 1975190, 2821700, 3950380, 4937975, 9875950, 19751900]

約数ペア:

[(1, 19751900), (2, 9875950), (4, 4937975), (5, 3950380), (7, 2821700), (10, 1975190), (14, 1410850), (20, 987595), (25, 790076), (28, 705425), (29, 681100), (35, 564340), (49, 403100), (50, 395038), (58, 340550), (70, 282170), (98, 201550), (100, 197519), (116, 170275), (139, 142100), (140, 141085), (145, 136220), (175, 112868), (196, 100775), (203, 97300), (245, 80620), (278, 71050), (290, 68110), (350, 56434), (406, 48650), (490, 40310), (556, 35525), (580, 34055), (695, 28420), (700, 28217), (725, 27244), (812, 24325), (973, 20300), (980, 20155), (1015, 19460), (1225, 16124), (1390, 14210), (1421, 13900), (1450, 13622), (1946, 10150), (2030, 9730), (2450, 8062), (2780, 7105), (2842, 6950), (2900, 6811), (3475, 5684), (3892, 5075), (4031, 4900), (4060, 4865)]