721124980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{811}}^1\times {\mathrm{1933}}^1$

素因数の和:2776

約数の個数: 48

約数和(自身を含む): 1582971264

約数和(自身を除く): 861846284

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 811, 1622, 1933, 3244, 3866, 4055, 7732, 8110, 9665, 16220, 18653, 19330, 37306, 38660, 44459, 74612, 88918, 93265, 177836, 186530, 222295, 373060, 444590, 889180, 1567663, 3135326, 6270652, 7838315, 15676630, 31353260, 36056249, 72112498, 144224996, 180281245, 360562490, 721124980]

約数ペア:

[(1, 721124980), (2, 360562490), (4, 180281245), (5, 144224996), (10, 72112498), (20, 36056249), (23, 31353260), (46, 15676630), (92, 7838315), (115, 6270652), (230, 3135326), (460, 1567663), (811, 889180), (1622, 444590), (1933, 373060), (3244, 222295), (3866, 186530), (4055, 177836), (7732, 93265), (8110, 88918), (9665, 74612), (16220, 44459), (18653, 38660), (19330, 37306)]