15995720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1662

約数の個数: 64

約数和(自身を含む): 40824000

約数和(自身を除く): 24828280

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1619, 1976, 2470, 3238, 4940, 6476, 8095, 9880, 12952, 16190, 21047, 30761, 32380, 42094, 61522, 64760, 84188, 105235, 123044, 153805, 168376, 210470, 246088, 307610, 399893, 420940, 615220, 799786, 841880, 1230440, 1599572, 1999465, 3199144, 3998930, 7997860, 15995720]

約数ペア:

[(1, 15995720), (2, 7997860), (4, 3998930), (5, 3199144), (8, 1999465), (10, 1599572), (13, 1230440), (19, 841880), (20, 799786), (26, 615220), (38, 420940), (40, 399893), (52, 307610), (65, 246088), (76, 210470), (95, 168376), (104, 153805), (130, 123044), (152, 105235), (190, 84188), (247, 64760), (260, 61522), (380, 42094), (494, 32380), (520, 30761), (760, 21047), (988, 16190), (1235, 12952), (1619, 9880), (1976, 8095), (2470, 6476), (3238, 4940)]