640133376

素因数分解:

$2^8\times 3^1\times {\mathrm{197}}^1\times {\mathrm{4231}}^1$

素因数の和:4447

約数の個数: 72

約数和(自身を含む): 1712741184

約数和(自身を除く): 1072607808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 197, 256, 384, 394, 591, 768, 788, 1182, 1576, 2364, 3152, 4231, 4728, 6304, 8462, 9456, 12608, 12693, 16924, 18912, 25216, 25386, 33848, 37824, 50432, 50772, 67696, 75648, 101544, 135392, 151296, 203088, 270784, 406176, 541568, 812352, 833507, 1083136, 1624704, 1667014, 2500521, 3249408, 3334028, 5001042, 6668056, 10002084, 13336112, 20004168, 26672224, 40008336, 53344448, 80016672, 106688896, 160033344, 213377792, 320066688, 640133376]

約数ペア:

[(1, 640133376), (2, 320066688), (3, 213377792), (4, 160033344), (6, 106688896), (8, 80016672), (12, 53344448), (16, 40008336), (24, 26672224), (32, 20004168), (48, 13336112), (64, 10002084), (96, 6668056), (128, 5001042), (192, 3334028), (197, 3249408), (256, 2500521), (384, 1667014), (394, 1624704), (591, 1083136), (768, 833507), (788, 812352), (1182, 541568), (1576, 406176), (2364, 270784), (3152, 203088), (4231, 151296), (4728, 135392), (6304, 101544), (8462, 75648), (9456, 67696), (12608, 50772), (12693, 50432), (16924, 37824), (18912, 33848), (25216, 25386)]