18001988636

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{661}}^1\times {\mathrm{2551}}^1$

素因数の和:3390

約数の個数: 48

約数和(自身を含む): 33633052992

約数和(自身を除く): 15631064356

約数列:

[1, 2, 4, 17, 34, 68, 157, 314, 628, 661, 1322, 2551, 2644, 2669, 5102, 5338, 10204, 10676, 11237, 22474, 43367, 44948, 86734, 103777, 173468, 207554, 400507, 415108, 801014, 1602028, 1686211, 1764209, 3372422, 3528418, 6744844, 6808619, 7056836, 13617238, 27234476, 28665587, 57331174, 114662348, 264735127, 529470254, 1058940508, 4500497159, 9000994318, 18001988636]

約数ペア:

[(1, 18001988636), (2, 9000994318), (4, 4500497159), (17, 1058940508), (34, 529470254), (68, 264735127), (157, 114662348), (314, 57331174), (628, 28665587), (661, 27234476), (1322, 13617238), (2551, 7056836), (2644, 6808619), (2669, 6744844), (5102, 3528418), (5338, 3372422), (10204, 1764209), (10676, 1686211), (11237, 1602028), (22474, 801014), (43367, 415108), (44948, 400507), (86734, 207554), (103777, 173468)]