128793420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{102217}}^1$

素因数の和:102239

約数の個数: 72

約数和(自身を含む): 446488224

約数和(自身を除く): 317694804

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 102217, 204434, 306651, 408868, 511085, 613302, 715519, 919953, 1022170, 1226604, 1431038, 1533255, 1839906, 2044340, 2146557, 2862076, 3066510, 3577595, 3679812, 4293114, 4599765, 6133020, 6439671, 7155190, 8586228, 9199530, 10732785, 12879342, 14310380, 18399060, 21465570, 25758684, 32198355, 42931140, 64396710, 128793420]

約数ペア:

[(1, 128793420), (2, 64396710), (3, 42931140), (4, 32198355), (5, 25758684), (6, 21465570), (7, 18399060), (9, 14310380), (10, 12879342), (12, 10732785), (14, 9199530), (15, 8586228), (18, 7155190), (20, 6439671), (21, 6133020), (28, 4599765), (30, 4293114), (35, 3679812), (36, 3577595), (42, 3066510), (45, 2862076), (60, 2146557), (63, 2044340), (70, 1839906), (84, 1533255), (90, 1431038), (105, 1226604), (126, 1022170), (140, 919953), (180, 715519), (210, 613302), (252, 511085), (315, 408868), (420, 306651), (630, 204434), (1260, 102217)]