20712272

素因数分解:

$2^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1831}}^1$

素因数の和:1947

約数の個数: 40

約数和(自身を含む): 46342272

約数和(自身を除く): 25630000

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 101, 112, 202, 404, 707, 808, 1414, 1616, 1831, 2828, 3662, 5656, 7324, 11312, 12817, 14648, 25634, 29296, 51268, 102536, 184931, 205072, 369862, 739724, 1294517, 1479448, 2589034, 2958896, 5178068, 10356136, 20712272]

約数ペア:

[(1, 20712272), (2, 10356136), (4, 5178068), (7, 2958896), (8, 2589034), (14, 1479448), (16, 1294517), (28, 739724), (56, 369862), (101, 205072), (112, 184931), (202, 102536), (404, 51268), (707, 29296), (808, 25634), (1414, 14648), (1616, 12817), (1831, 11312), (2828, 7324), (3662, 5656)]