1280451220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1847}}^1\times {\mathrm{2039}}^1$

素因数の和:3912

約数の個数: 48

約数和(自身を含む): 2850059520

約数和(自身を除く): 1569608300

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1847, 2039, 3694, 4078, 7388, 8156, 9235, 10195, 18470, 20390, 31399, 34663, 36940, 40780, 62798, 69326, 125596, 138652, 156995, 173315, 313990, 346630, 627980, 693260, 3766033, 7532066, 15064132, 18830165, 37660330, 64022561, 75320660, 128045122, 256090244, 320112805, 640225610, 1280451220]

約数ペア:

[(1, 1280451220), (2, 640225610), (4, 320112805), (5, 256090244), (10, 128045122), (17, 75320660), (20, 64022561), (34, 37660330), (68, 18830165), (85, 15064132), (170, 7532066), (340, 3766033), (1847, 693260), (2039, 627980), (3694, 346630), (4078, 313990), (7388, 173315), (8156, 156995), (9235, 138652), (10195, 125596), (18470, 69326), (20390, 62798), (31399, 40780), (34663, 36940)]