77252780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{1399}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 177811200

約数和(自身を除く): 100558420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 251, 502, 1004, 1255, 1399, 2510, 2761, 2798, 5020, 5522, 5596, 6995, 11044, 13805, 13990, 15389, 27610, 27980, 30778, 55220, 61556, 76945, 153890, 307780, 351149, 702298, 1404596, 1755745, 3511490, 3862639, 7022980, 7725278, 15450556, 19313195, 38626390, 77252780]

約数ペア:

[(1, 77252780), (2, 38626390), (4, 19313195), (5, 15450556), (10, 7725278), (11, 7022980), (20, 3862639), (22, 3511490), (44, 1755745), (55, 1404596), (110, 702298), (220, 351149), (251, 307780), (502, 153890), (1004, 76945), (1255, 61556), (1399, 55220), (2510, 30778), (2761, 27980), (2798, 27610), (5020, 15389), (5522, 13990), (5596, 13805), (6995, 11044)]