39791440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38261}}^1$

素因数の和:38287

約数の個数: 40

約数和(自身を含む): 99634248

約数和(自身を除く): 59842808

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 38261, 76522, 153044, 191305, 306088, 382610, 497393, 612176, 765220, 994786, 1530440, 1989572, 2486965, 3060880, 3979144, 4973930, 7958288, 9947860, 19895720, 39791440]

約数ペア:

[(1, 39791440), (2, 19895720), (4, 9947860), (5, 7958288), (8, 4973930), (10, 3979144), (13, 3060880), (16, 2486965), (20, 1989572), (26, 1530440), (40, 994786), (52, 765220), (65, 612176), (80, 497393), (104, 382610), (130, 306088), (208, 191305), (260, 153044), (520, 76522), (1040, 38261)]