1021489400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{268813}}^1$

素因数の和:268848

約数の個数: 48

約数和(自身を含む): 2499970200

約数和(自身を除く): 1478480800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 268813, 537626, 1075252, 1344065, 2150504, 2688130, 5107447, 5376260, 6720325, 10214894, 10752520, 13440650, 20429788, 25537235, 26881300, 40859576, 51074470, 53762600, 102148940, 127686175, 204297880, 255372350, 510744700, 1021489400]

約数ペア:

[(1, 1021489400), (2, 510744700), (4, 255372350), (5, 204297880), (8, 127686175), (10, 102148940), (19, 53762600), (20, 51074470), (25, 40859576), (38, 26881300), (40, 25537235), (50, 20429788), (76, 13440650), (95, 10752520), (100, 10214894), (152, 6720325), (190, 5376260), (200, 5107447), (380, 2688130), (475, 2150504), (760, 1344065), (950, 1075252), (1900, 537626), (3800, 268813)]