20667340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 25055540

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 179, 230, 251, 358, 460, 502, 716, 895, 1004, 1255, 1790, 2510, 3580, 4117, 5020, 5773, 8234, 11546, 16468, 20585, 23092, 28865, 41170, 44929, 57730, 82340, 89858, 115460, 179716, 224645, 449290, 898580, 1033367, 2066734, 4133468, 5166835, 10333670, 20667340]

約数ペア:

[(1, 20667340), (2, 10333670), (4, 5166835), (5, 4133468), (10, 2066734), (20, 1033367), (23, 898580), (46, 449290), (92, 224645), (115, 179716), (179, 115460), (230, 89858), (251, 82340), (358, 57730), (460, 44929), (502, 41170), (716, 28865), (895, 23092), (1004, 20585), (1255, 16468), (1790, 11546), (2510, 8234), (3580, 5773), (4117, 5020)]