20731464

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:161

約数の個数: 160

約数和(自身を含む): 65862720

約数和(自身を除く): 45131256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 23, 24, 26, 27, 36, 39, 46, 52, 54, 69, 72, 78, 81, 92, 104, 107, 108, 117, 138, 156, 162, 184, 207, 214, 216, 234, 276, 299, 312, 321, 324, 351, 414, 428, 468, 552, 598, 621, 642, 648, 702, 828, 856, 897, 936, 963, 1053, 1196, 1242, 1284, 1391, 1404, 1656, 1794, 1863, 1926, 2106, 2392, 2461, 2484, 2568, 2691, 2782, 2808, 2889, 3588, 3726, 3852, 4173, 4212, 4922, 4968, 5382, 5564, 5778, 7176, 7383, 7452, 7704, 8073, 8346, 8424, 8667, 9844, 10764, 11128, 11556, 12519, 14766, 14904, 16146, 16692, 17334, 19688, 21528, 22149, 23112, 24219, 25038, 29532, 31993, 32292, 33384, 34668, 37557, 44298, 48438, 50076, 59064, 63986, 64584, 66447, 69336, 75114, 88596, 95979, 96876, 100152, 112671, 127972, 132894, 150228, 177192, 191958, 193752, 199341, 225342, 255944, 265788, 287937, 300456, 383916, 398682, 450684, 531576, 575874, 767832, 797364, 863811, 901368, 1151748, 1594728, 1727622, 2303496, 2591433, 3455244, 5182866, 6910488, 10365732, 20731464]

約数ペア:

[(1, 20731464), (2, 10365732), (3, 6910488), (4, 5182866), (6, 3455244), (8, 2591433), (9, 2303496), (12, 1727622), (13, 1594728), (18, 1151748), (23, 901368), (24, 863811), (26, 797364), (27, 767832), (36, 575874), (39, 531576), (46, 450684), (52, 398682), (54, 383916), (69, 300456), (72, 287937), (78, 265788), (81, 255944), (92, 225342), (104, 199341), (107, 193752), (108, 191958), (117, 177192), (138, 150228), (156, 132894), (162, 127972), (184, 112671), (207, 100152), (214, 96876), (216, 95979), (234, 88596), (276, 75114), (299, 69336), (312, 66447), (321, 64584), (324, 63986), (351, 59064), (414, 50076), (428, 48438), (468, 44298), (552, 37557), (598, 34668), (621, 33384), (642, 32292), (648, 31993), (702, 29532), (828, 25038), (856, 24219), (897, 23112), (936, 22149), (963, 21528), (1053, 19688), (1196, 17334), (1242, 16692), (1284, 16146), (1391, 14904), (1404, 14766), (1656, 12519), (1794, 11556), (1863, 11128), (1926, 10764), (2106, 9844), (2392, 8667), (2461, 8424), (2484, 8346), (2568, 8073), (2691, 7704), (2782, 7452), (2808, 7383), (2889, 7176), (3588, 5778), (3726, 5564), (3852, 5382), (4173, 4968), (4212, 4922)]