12960984920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24924971}}^1$

素因数の和:24924995

約数の個数: 32

約数和(自身を含む): 31405464720

約数和(自身を除く): 18444479800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 24924971, 49849942, 99699884, 124624855, 199399768, 249249710, 324024623, 498499420, 648049246, 996998840, 1296098492, 1620123115, 2592196984, 3240246230, 6480492460, 12960984920]

約数ペア:

[(1, 12960984920), (2, 6480492460), (4, 3240246230), (5, 2592196984), (8, 1620123115), (10, 1296098492), (13, 996998840), (20, 648049246), (26, 498499420), (40, 324024623), (52, 249249710), (65, 199399768), (104, 124624855), (130, 99699884), (260, 49849942), (520, 24924971)]