28979916

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{359}}^1$

素因数の和:435

約数の個数: 72

約数和(自身を含む): 80075520

約数和(自身を除く): 51095604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 186, 217, 359, 372, 434, 651, 718, 868, 961, 1077, 1302, 1436, 1922, 2154, 2513, 2604, 2883, 3844, 4308, 5026, 5766, 6727, 7539, 10052, 11129, 11532, 13454, 15078, 20181, 22258, 26908, 30156, 33387, 40362, 44516, 66774, 77903, 80724, 133548, 155806, 233709, 311612, 344999, 467418, 689998, 934836, 1034997, 1379996, 2069994, 2414993, 4139988, 4829986, 7244979, 9659972, 14489958, 28979916]

約数ペア:

[(1, 28979916), (2, 14489958), (3, 9659972), (4, 7244979), (6, 4829986), (7, 4139988), (12, 2414993), (14, 2069994), (21, 1379996), (28, 1034997), (31, 934836), (42, 689998), (62, 467418), (84, 344999), (93, 311612), (124, 233709), (186, 155806), (217, 133548), (359, 80724), (372, 77903), (434, 66774), (651, 44516), (718, 40362), (868, 33387), (961, 30156), (1077, 26908), (1302, 22258), (1436, 20181), (1922, 15078), (2154, 13454), (2513, 11532), (2604, 11129), (2883, 10052), (3844, 7539), (4308, 6727), (5026, 5766)]