68380208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{631}}^1$

素因数の和:1173

約数の個数: 40

約数和(自身を含む): 143178336

約数和(自身を除く): 74798128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 521, 631, 1042, 1262, 2084, 2524, 4168, 5048, 6773, 8203, 8336, 10096, 13546, 16406, 27092, 32812, 54184, 65624, 108368, 131248, 328751, 657502, 1315004, 2630008, 4273763, 5260016, 8547526, 17095052, 34190104, 68380208]

約数ペア:

[(1, 68380208), (2, 34190104), (4, 17095052), (8, 8547526), (13, 5260016), (16, 4273763), (26, 2630008), (52, 1315004), (104, 657502), (208, 328751), (521, 131248), (631, 108368), (1042, 65624), (1262, 54184), (2084, 32812), (2524, 27092), (4168, 16406), (5048, 13546), (6773, 10096), (8203, 8336)]