397348400

素因数分解:

$2^4\times 5^2\times {\mathrm{193}}^1\times {\mathrm{5147}}^1$

素因数の和:5358

約数の個数: 60

約数和(自身を含む): 959762232

約数和(自身を除く): 562413832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 193, 200, 386, 400, 772, 965, 1544, 1930, 3088, 3860, 4825, 5147, 7720, 9650, 10294, 15440, 19300, 20588, 25735, 38600, 41176, 51470, 77200, 82352, 102940, 128675, 205880, 257350, 411760, 514700, 993371, 1029400, 1986742, 2058800, 3973484, 4966855, 7946968, 9933710, 15893936, 19867420, 24834275, 39734840, 49668550, 79469680, 99337100, 198674200, 397348400]

約数ペア:

[(1, 397348400), (2, 198674200), (4, 99337100), (5, 79469680), (8, 49668550), (10, 39734840), (16, 24834275), (20, 19867420), (25, 15893936), (40, 9933710), (50, 7946968), (80, 4966855), (100, 3973484), (193, 2058800), (200, 1986742), (386, 1029400), (400, 993371), (772, 514700), (965, 411760), (1544, 257350), (1930, 205880), (3088, 128675), (3860, 102940), (4825, 82352), (5147, 77200), (7720, 51470), (9650, 41176), (10294, 38600), (15440, 25735), (19300, 20588)]