78666800

素因数分解:

$2^4\times 5^2\times {\mathrm{193}}^1\times {\mathrm{1019}}^1$

素因数の和:1230

約数の個数: 60

約数和(自身を含む): 190162680

約数和(自身を除く): 111495880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 193, 200, 386, 400, 772, 965, 1019, 1544, 1930, 2038, 3088, 3860, 4076, 4825, 5095, 7720, 8152, 9650, 10190, 15440, 16304, 19300, 20380, 25475, 38600, 40760, 50950, 77200, 81520, 101900, 196667, 203800, 393334, 407600, 786668, 983335, 1573336, 1966670, 3146672, 3933340, 4916675, 7866680, 9833350, 15733360, 19666700, 39333400, 78666800]

約数ペア:

[(1, 78666800), (2, 39333400), (4, 19666700), (5, 15733360), (8, 9833350), (10, 7866680), (16, 4916675), (20, 3933340), (25, 3146672), (40, 1966670), (50, 1573336), (80, 983335), (100, 786668), (193, 407600), (200, 393334), (386, 203800), (400, 196667), (772, 101900), (965, 81520), (1019, 77200), (1544, 50950), (1930, 40760), (2038, 38600), (3088, 25475), (3860, 20380), (4076, 19300), (4825, 16304), (5095, 15440), (7720, 10190), (8152, 9650)]