199920364

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1657}}^1$

素因数の和:1838

約数の個数: 48

約数和(自身を含む): 415959040

約数和(自身を除く): 216038676

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 139, 217, 278, 434, 556, 868, 973, 1657, 1946, 3314, 3892, 4309, 6628, 8618, 11599, 17236, 23198, 30163, 46396, 51367, 60326, 102734, 120652, 205468, 230323, 359569, 460646, 719138, 921292, 1438276, 1612261, 3224522, 6449044, 7140013, 14280026, 28560052, 49980091, 99960182, 199920364]

約数ペア:

[(1, 199920364), (2, 99960182), (4, 49980091), (7, 28560052), (14, 14280026), (28, 7140013), (31, 6449044), (62, 3224522), (124, 1612261), (139, 1438276), (217, 921292), (278, 719138), (434, 460646), (556, 359569), (868, 230323), (973, 205468), (1657, 120652), (1946, 102734), (3314, 60326), (3892, 51367), (4309, 46396), (6628, 30163), (8618, 23198), (11599, 17236)]