81563392

素因数分解:

$2^8\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 170878400

約数和(自身を除く): 89315008

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 79, 109, 128, 148, 158, 218, 256, 296, 316, 436, 592, 632, 872, 1184, 1264, 1744, 2368, 2528, 2923, 3488, 4033, 4736, 5056, 5846, 6976, 8066, 8611, 9472, 10112, 11692, 13952, 16132, 17222, 20224, 23384, 27904, 32264, 34444, 46768, 64528, 68888, 93536, 129056, 137776, 187072, 258112, 275552, 318607, 374144, 516224, 551104, 637214, 748288, 1032448, 1102208, 1274428, 2204416, 2548856, 5097712, 10195424, 20390848, 40781696, 81563392]

約数ペア:

[(1, 81563392), (2, 40781696), (4, 20390848), (8, 10195424), (16, 5097712), (32, 2548856), (37, 2204416), (64, 1274428), (74, 1102208), (79, 1032448), (109, 748288), (128, 637214), (148, 551104), (158, 516224), (218, 374144), (256, 318607), (296, 275552), (316, 258112), (436, 187072), (592, 137776), (632, 129056), (872, 93536), (1184, 68888), (1264, 64528), (1744, 46768), (2368, 34444), (2528, 32264), (2923, 27904), (3488, 23384), (4033, 20224), (4736, 17222), (5056, 16132), (5846, 13952), (6976, 11692), (8066, 10112), (8611, 9472)]