680645888

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{204521}}^1$

素因数の和:204550

約数の個数: 36

約数和(自身を含む): 1463150388

約数和(自身を除く): 782504500

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 832, 1664, 3328, 204521, 409042, 818084, 1636168, 2658773, 3272336, 5317546, 6544672, 10635092, 13089344, 21270184, 26178688, 42540368, 52357376, 85080736, 170161472, 340322944, 680645888]

約数ペア:

[(1, 680645888), (2, 340322944), (4, 170161472), (8, 85080736), (13, 52357376), (16, 42540368), (26, 26178688), (32, 21270184), (52, 13089344), (64, 10635092), (104, 6544672), (128, 5317546), (208, 3272336), (256, 2658773), (416, 1636168), (832, 818084), (1664, 409042), (3328, 204521)]