640141248

素因数分解:

$2^6\times 3^1\times {\mathrm{571}}^1\times {\mathrm{5839}}^1$

素因数の和:6425

約数の個数: 56

約数和(自身を含む): 1696963840

約数和(自身を除く): 1056822592

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192, 571, 1142, 1713, 2284, 3426, 4568, 5839, 6852, 9136, 11678, 13704, 17517, 18272, 23356, 27408, 35034, 36544, 46712, 54816, 70068, 93424, 109632, 140136, 186848, 280272, 373696, 560544, 1121088, 3334069, 6668138, 10002207, 13336276, 20004414, 26672552, 40008828, 53345104, 80017656, 106690208, 160035312, 213380416, 320070624, 640141248]

約数ペア:

[(1, 640141248), (2, 320070624), (3, 213380416), (4, 160035312), (6, 106690208), (8, 80017656), (12, 53345104), (16, 40008828), (24, 26672552), (32, 20004414), (48, 13336276), (64, 10002207), (96, 6668138), (192, 3334069), (571, 1121088), (1142, 560544), (1713, 373696), (2284, 280272), (3426, 186848), (4568, 140136), (5839, 109632), (6852, 93424), (9136, 70068), (11678, 54816), (13704, 46712), (17517, 36544), (18272, 35034), (23356, 27408)]