76991800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20261}}^1$

素因数の和:20296

約数の個数: 48

約数和(自身を含む): 188436600

約数和(自身を除く): 111444800

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, 20261, 40522, 81044, 101305, 162088, 202610, 384959, 405220, 506525, 769918, 810440, 1013050, 1539836, 1924795, 2026100, 3079672, 3849590, 4052200, 7699180, 9623975, 15398360, 19247950, 38495900, 76991800]

約数ペア:

[(1, 76991800), (2, 38495900), (4, 19247950), (5, 15398360), (8, 9623975), (10, 7699180), (19, 4052200), (20, 3849590), (25, 3079672), (38, 2026100), (40, 1924795), (50, 1539836), (76, 1013050), (95, 810440), (100, 769918), (152, 506525), (190, 405220), (200, 384959), (380, 202610), (475, 162088), (760, 101305), (950, 81044), (1900, 40522), (3800, 20261)]