397777744

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{761}}^1$

素因数の和:1148

約数の個数: 80

約数和(自身を含む): 952439040

約数和(自身を除く): 554661296

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 359, 364, 718, 728, 761, 1436, 1456, 1522, 2513, 2872, 3044, 4667, 5026, 5327, 5744, 6088, 9334, 9893, 10052, 10654, 12176, 18668, 19786, 20104, 21308, 32669, 37336, 39572, 40208, 42616, 65338, 69251, 74672, 79144, 85232, 130676, 138502, 158288, 261352, 273199, 277004, 522704, 546398, 554008, 1092796, 1108016, 1912393, 2185592, 3551587, 3824786, 4371184, 7103174, 7649572, 14206348, 15299144, 24861109, 28412696, 30598288, 49722218, 56825392, 99444436, 198888872, 397777744]

約数ペア:

[(1, 397777744), (2, 198888872), (4, 99444436), (7, 56825392), (8, 49722218), (13, 30598288), (14, 28412696), (16, 24861109), (26, 15299144), (28, 14206348), (52, 7649572), (56, 7103174), (91, 4371184), (104, 3824786), (112, 3551587), (182, 2185592), (208, 1912393), (359, 1108016), (364, 1092796), (718, 554008), (728, 546398), (761, 522704), (1436, 277004), (1456, 273199), (1522, 261352), (2513, 158288), (2872, 138502), (3044, 130676), (4667, 85232), (5026, 79144), (5327, 74672), (5744, 69251), (6088, 65338), (9334, 42616), (9893, 40208), (10052, 39572), (10654, 37336), (12176, 32669), (18668, 21308), (19786, 20104)]