20042456

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{569}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 46785600

約数和(自身を除く): 26743144

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 37, 56, 68, 74, 119, 136, 148, 238, 259, 296, 476, 518, 569, 629, 952, 1036, 1138, 1258, 2072, 2276, 2516, 3983, 4403, 4552, 5032, 7966, 8806, 9673, 15932, 17612, 19346, 21053, 31864, 35224, 38692, 42106, 67711, 77384, 84212, 135422, 147371, 168424, 270844, 294742, 357901, 541688, 589484, 715802, 1178968, 1431604, 2505307, 2863208, 5010614, 10021228, 20042456]

約数ペア:

[(1, 20042456), (2, 10021228), (4, 5010614), (7, 2863208), (8, 2505307), (14, 1431604), (17, 1178968), (28, 715802), (34, 589484), (37, 541688), (56, 357901), (68, 294742), (74, 270844), (119, 168424), (136, 147371), (148, 135422), (238, 84212), (259, 77384), (296, 67711), (476, 42106), (518, 38692), (569, 35224), (629, 31864), (952, 21053), (1036, 19346), (1138, 17612), (1258, 15932), (2072, 9673), (2276, 8806), (2516, 7966), (3983, 5032), (4403, 4552)]