221498576

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1693}}^1$

素因数の和:1768

約数の個数: 80

約数和(自身を含む): 502874064

約数和(自身を除く): 281375488

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 37, 52, 68, 74, 104, 136, 148, 208, 221, 272, 296, 442, 481, 592, 629, 884, 962, 1258, 1693, 1768, 1924, 2516, 3386, 3536, 3848, 5032, 6772, 7696, 8177, 10064, 13544, 16354, 22009, 27088, 28781, 32708, 44018, 57562, 62641, 65416, 88036, 115124, 125282, 130832, 176072, 230248, 250564, 352144, 374153, 460496, 501128, 748306, 814333, 1002256, 1064897, 1496612, 1628666, 2129794, 2993224, 3257332, 4259588, 5986448, 6514664, 8519176, 13029328, 13843661, 17038352, 27687322, 55374644, 110749288, 221498576]

約数ペア:

[(1, 221498576), (2, 110749288), (4, 55374644), (8, 27687322), (13, 17038352), (16, 13843661), (17, 13029328), (26, 8519176), (34, 6514664), (37, 5986448), (52, 4259588), (68, 3257332), (74, 2993224), (104, 2129794), (136, 1628666), (148, 1496612), (208, 1064897), (221, 1002256), (272, 814333), (296, 748306), (442, 501128), (481, 460496), (592, 374153), (629, 352144), (884, 250564), (962, 230248), (1258, 176072), (1693, 130832), (1768, 125282), (1924, 115124), (2516, 88036), (3386, 65416), (3536, 62641), (3848, 57562), (5032, 44018), (6772, 32708), (7696, 28781), (8177, 27088), (10064, 22009), (13544, 16354)]