20378682

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 48729600

約数和(自身を除く): 28350918

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 79, 102, 153, 158, 237, 281, 306, 459, 474, 562, 711, 843, 918, 1343, 1422, 1686, 2133, 2529, 2686, 4029, 4266, 4777, 5058, 7587, 8058, 9554, 12087, 14331, 15174, 22199, 24174, 28662, 36261, 42993, 44398, 66597, 72522, 85986, 128979, 133194, 199791, 257958, 377383, 399582, 599373, 754766, 1132149, 1198746, 2264298, 3396447, 6792894, 10189341, 20378682]

約数ペア:

[(1, 20378682), (2, 10189341), (3, 6792894), (6, 3396447), (9, 2264298), (17, 1198746), (18, 1132149), (27, 754766), (34, 599373), (51, 399582), (54, 377383), (79, 257958), (102, 199791), (153, 133194), (158, 128979), (237, 85986), (281, 72522), (306, 66597), (459, 44398), (474, 42993), (562, 36261), (711, 28662), (843, 24174), (918, 22199), (1343, 15174), (1422, 14331), (1686, 12087), (2133, 9554), (2529, 8058), (2686, 7587), (4029, 5058), (4266, 4777)]