188473640

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 431818560

約数和(自身を除く): 243344920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 163, 211, 274, 326, 422, 548, 652, 685, 815, 844, 1055, 1096, 1304, 1370, 1630, 1688, 2110, 2740, 3260, 4220, 5480, 6520, 8440, 22331, 28907, 34393, 44662, 57814, 68786, 89324, 111655, 115628, 137572, 144535, 171965, 178648, 223310, 231256, 275144, 289070, 343930, 446620, 578140, 687860, 893240, 1156280, 1375720, 4711841, 9423682, 18847364, 23559205, 37694728, 47118410, 94236820, 188473640]

約数ペア:

[(1, 188473640), (2, 94236820), (4, 47118410), (5, 37694728), (8, 23559205), (10, 18847364), (20, 9423682), (40, 4711841), (137, 1375720), (163, 1156280), (211, 893240), (274, 687860), (326, 578140), (422, 446620), (548, 343930), (652, 289070), (685, 275144), (815, 231256), (844, 223310), (1055, 178648), (1096, 171965), (1304, 144535), (1370, 137572), (1630, 115628), (1688, 111655), (2110, 89324), (2740, 68786), (3260, 57814), (4220, 44662), (5480, 34393), (6520, 28907), (8440, 22331)]