20454412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 42134400

約数和(自身を除く): 21679988

約数列:

[1, 2, 4, 11, 19, 22, 38, 43, 44, 76, 86, 172, 209, 418, 473, 569, 817, 836, 946, 1138, 1634, 1892, 2276, 3268, 6259, 8987, 10811, 12518, 17974, 21622, 24467, 25036, 35948, 43244, 48934, 97868, 118921, 237842, 269137, 464873, 475684, 538274, 929746, 1076548, 1859492, 5113603, 10227206, 20454412]

約数ペア:

[(1, 20454412), (2, 10227206), (4, 5113603), (11, 1859492), (19, 1076548), (22, 929746), (38, 538274), (43, 475684), (44, 464873), (76, 269137), (86, 237842), (172, 118921), (209, 97868), (418, 48934), (473, 43244), (569, 35948), (817, 25036), (836, 24467), (946, 21622), (1138, 17974), (1634, 12518), (1892, 10811), (2276, 8987), (3268, 6259)]