20876790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1543}}^1$

素因数の和:1605

約数の個数: 64

約数和(自身を含む): 56028672

約数和(自身を除く): 35151882

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 41, 55, 66, 82, 110, 123, 165, 205, 246, 330, 410, 451, 615, 902, 1230, 1353, 1543, 2255, 2706, 3086, 4510, 4629, 6765, 7715, 9258, 13530, 15430, 16973, 23145, 33946, 46290, 50919, 63263, 84865, 101838, 126526, 169730, 189789, 254595, 316315, 379578, 509190, 632630, 695893, 948945, 1391786, 1897890, 2087679, 3479465, 4175358, 6958930, 10438395, 20876790]

約数ペア:

[(1, 20876790), (2, 10438395), (3, 6958930), (5, 4175358), (6, 3479465), (10, 2087679), (11, 1897890), (15, 1391786), (22, 948945), (30, 695893), (33, 632630), (41, 509190), (55, 379578), (66, 316315), (82, 254595), (110, 189789), (123, 169730), (165, 126526), (205, 101838), (246, 84865), (330, 63263), (410, 50919), (451, 46290), (615, 33946), (902, 23145), (1230, 16973), (1353, 15430), (1543, 13530), (2255, 9258), (2706, 7715), (3086, 6765), (4510, 4629)]