20532980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{523}}^1$

素因数の和:696

約数の個数: 48

約数和(自身を含む): 46833024

約数和(自身を除く): 26300044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 151, 260, 302, 523, 604, 755, 1046, 1510, 1963, 2092, 2615, 3020, 3926, 5230, 6799, 7852, 9815, 10460, 13598, 19630, 27196, 33995, 39260, 67990, 78973, 135980, 157946, 315892, 394865, 789730, 1026649, 1579460, 2053298, 4106596, 5133245, 10266490, 20532980]

約数ペア:

[(1, 20532980), (2, 10266490), (4, 5133245), (5, 4106596), (10, 2053298), (13, 1579460), (20, 1026649), (26, 789730), (52, 394865), (65, 315892), (130, 157946), (151, 135980), (260, 78973), (302, 67990), (523, 39260), (604, 33995), (755, 27196), (1046, 19630), (1510, 13598), (1963, 10460), (2092, 9815), (2615, 7852), (3020, 6799), (3926, 5230)]