20748364

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{479}}^1$

素因数の和:527

約数の個数: 72

約数和(自身を含む): 48263040

約数和(自身を除く): 27514676

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 49, 52, 68, 91, 98, 119, 182, 196, 221, 238, 364, 442, 476, 479, 637, 833, 884, 958, 1274, 1547, 1666, 1916, 2548, 3094, 3332, 3353, 6188, 6227, 6706, 8143, 10829, 12454, 13412, 16286, 21658, 23471, 24908, 32572, 43316, 43589, 46942, 57001, 87178, 93884, 105859, 114002, 174356, 211718, 228004, 305123, 399007, 423436, 610246, 741013, 798014, 1220492, 1482026, 1596028, 2964052, 5187091, 10374182, 20748364]

約数ペア:

[(1, 20748364), (2, 10374182), (4, 5187091), (7, 2964052), (13, 1596028), (14, 1482026), (17, 1220492), (26, 798014), (28, 741013), (34, 610246), (49, 423436), (52, 399007), (68, 305123), (91, 228004), (98, 211718), (119, 174356), (182, 114002), (196, 105859), (221, 93884), (238, 87178), (364, 57001), (442, 46942), (476, 43589), (479, 43316), (637, 32572), (833, 24908), (884, 23471), (958, 21658), (1274, 16286), (1547, 13412), (1666, 12454), (1916, 10829), (2548, 8143), (3094, 6706), (3332, 6227), (3353, 6188)]