128216540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 293388480

約数和(自身を除く): 165171940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 53, 58, 86, 97, 106, 116, 145, 172, 194, 212, 215, 265, 290, 388, 430, 485, 530, 580, 860, 970, 1060, 1247, 1537, 1940, 2279, 2494, 2813, 3074, 4171, 4558, 4988, 5141, 5626, 6148, 6235, 7685, 8342, 9116, 10282, 11252, 11395, 12470, 14065, 15370, 16684, 20564, 20855, 22790, 24940, 25705, 28130, 30740, 41710, 45580, 51410, 56260, 66091, 83420, 102820, 120959, 132182, 149089, 221063, 241918, 264364, 298178, 330455, 442126, 483836, 596356, 604795, 660910, 745445, 884252, 1105315, 1209590, 1321820, 1490890, 2210630, 2419180, 2981780, 4421260, 6410827, 12821654, 25643308, 32054135, 64108270, 128216540]

約数ペア:

[(1, 128216540), (2, 64108270), (4, 32054135), (5, 25643308), (10, 12821654), (20, 6410827), (29, 4421260), (43, 2981780), (53, 2419180), (58, 2210630), (86, 1490890), (97, 1321820), (106, 1209590), (116, 1105315), (145, 884252), (172, 745445), (194, 660910), (212, 604795), (215, 596356), (265, 483836), (290, 442126), (388, 330455), (430, 298178), (485, 264364), (530, 241918), (580, 221063), (860, 149089), (970, 132182), (1060, 120959), (1247, 102820), (1537, 83420), (1940, 66091), (2279, 56260), (2494, 51410), (2813, 45580), (3074, 41710), (4171, 30740), (4558, 28130), (4988, 25705), (5141, 24940), (5626, 22790), (6148, 20855), (6235, 20564), (7685, 16684), (8342, 15370), (9116, 14065), (10282, 12470), (11252, 11395)]