81442620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{593}}^1$

素因数の和:724

約数の個数: 144

約数和(自身を含む): 285405120

約数和(自身を除く): 203962500

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, 109, 126, 140, 180, 210, 218, 252, 315, 327, 420, 436, 545, 593, 630, 654, 763, 981, 1090, 1186, 1260, 1308, 1526, 1635, 1779, 1962, 2180, 2289, 2372, 2965, 3052, 3270, 3558, 3815, 3924, 4151, 4578, 4905, 5337, 5930, 6540, 6867, 7116, 7630, 8302, 8895, 9156, 9810, 10674, 11445, 11860, 12453, 13734, 15260, 16604, 17790, 19620, 20755, 21348, 22890, 24906, 26685, 27468, 34335, 35580, 37359, 41510, 45780, 49812, 53370, 62265, 64637, 68670, 74718, 83020, 106740, 124530, 129274, 137340, 149436, 186795, 193911, 249060, 258548, 323185, 373590, 387822, 452459, 581733, 646370, 747180, 775644, 904918, 969555, 1163466, 1292740, 1357377, 1809836, 1939110, 2262295, 2326932, 2714754, 2908665, 3878220, 4072131, 4524590, 5429508, 5817330, 6786885, 8144262, 9049180, 11634660, 13573770, 16288524, 20360655, 27147540, 40721310, 81442620]

約数ペア:

[(1, 81442620), (2, 40721310), (3, 27147540), (4, 20360655), (5, 16288524), (6, 13573770), (7, 11634660), (9, 9049180), (10, 8144262), (12, 6786885), (14, 5817330), (15, 5429508), (18, 4524590), (20, 4072131), (21, 3878220), (28, 2908665), (30, 2714754), (35, 2326932), (36, 2262295), (42, 1939110), (45, 1809836), (60, 1357377), (63, 1292740), (70, 1163466), (84, 969555), (90, 904918), (105, 775644), (109, 747180), (126, 646370), (140, 581733), (180, 452459), (210, 387822), (218, 373590), (252, 323185), (315, 258548), (327, 249060), (420, 193911), (436, 186795), (545, 149436), (593, 137340), (630, 129274), (654, 124530), (763, 106740), (981, 83020), (1090, 74718), (1186, 68670), (1260, 64637), (1308, 62265), (1526, 53370), (1635, 49812), (1779, 45780), (1962, 41510), (2180, 37359), (2289, 35580), (2372, 34335), (2965, 27468), (3052, 26685), (3270, 24906), (3558, 22890), (3815, 21348), (3924, 20755), (4151, 19620), (4578, 17790), (4905, 16604), (5337, 15260), (5930, 13734), (6540, 12453), (6867, 11860), (7116, 11445), (7630, 10674), (8302, 9810), (8895, 9156)]