20902968

素因数分解:

$2^3\times 3^3\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 41305032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 29, 36, 47, 54, 58, 71, 72, 87, 94, 108, 116, 141, 142, 174, 188, 213, 216, 232, 261, 282, 284, 348, 376, 423, 426, 522, 564, 568, 639, 696, 783, 846, 852, 1044, 1128, 1269, 1278, 1363, 1566, 1692, 1704, 1917, 2059, 2088, 2538, 2556, 2726, 3132, 3337, 3384, 3834, 4089, 4118, 5076, 5112, 5452, 6177, 6264, 6674, 7668, 8178, 8236, 10011, 10152, 10904, 12267, 12354, 13348, 15336, 16356, 16472, 18531, 20022, 24534, 24708, 26696, 30033, 32712, 36801, 37062, 40044, 49068, 49416, 55593, 60066, 73602, 74124, 80088, 90099, 96773, 98136, 111186, 120132, 147204, 148248, 180198, 193546, 222372, 240264, 290319, 294408, 360396, 387092, 444744, 580638, 720792, 774184, 870957, 1161276, 1741914, 2322552, 2612871, 3483828, 5225742, 6967656, 10451484, 20902968]

約数ペア:

[(1, 20902968), (2, 10451484), (3, 6967656), (4, 5225742), (6, 3483828), (8, 2612871), (9, 2322552), (12, 1741914), (18, 1161276), (24, 870957), (27, 774184), (29, 720792), (36, 580638), (47, 444744), (54, 387092), (58, 360396), (71, 294408), (72, 290319), (87, 240264), (94, 222372), (108, 193546), (116, 180198), (141, 148248), (142, 147204), (174, 120132), (188, 111186), (213, 98136), (216, 96773), (232, 90099), (261, 80088), (282, 74124), (284, 73602), (348, 60066), (376, 55593), (423, 49416), (426, 49068), (522, 40044), (564, 37062), (568, 36801), (639, 32712), (696, 30033), (783, 26696), (846, 24708), (852, 24534), (1044, 20022), (1128, 18531), (1269, 16472), (1278, 16356), (1363, 15336), (1566, 13348), (1692, 12354), (1704, 12267), (1917, 10904), (2059, 10152), (2088, 10011), (2538, 8236), (2556, 8178), (2726, 7668), (3132, 6674), (3337, 6264), (3384, 6177), (3834, 5452), (4089, 5112), (4118, 5076)]