780103880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{4261}}^1$

素因数の和:4494

約数の個数: 64

約数和(自身を含む): 1841184000

約数和(自身を除く): 1061080120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 199, 230, 398, 460, 796, 920, 995, 1592, 1990, 3980, 4261, 4577, 7960, 8522, 9154, 17044, 18308, 21305, 22885, 34088, 36616, 42610, 45770, 85220, 91540, 98003, 170440, 183080, 196006, 392012, 490015, 784024, 847939, 980030, 1695878, 1960060, 3391756, 3920120, 4239695, 6783512, 8479390, 16958780, 19502597, 33917560, 39005194, 78010388, 97512985, 156020776, 195025970, 390051940, 780103880]

約数ペア:

[(1, 780103880), (2, 390051940), (4, 195025970), (5, 156020776), (8, 97512985), (10, 78010388), (20, 39005194), (23, 33917560), (40, 19502597), (46, 16958780), (92, 8479390), (115, 6783512), (184, 4239695), (199, 3920120), (230, 3391756), (398, 1960060), (460, 1695878), (796, 980030), (920, 847939), (995, 784024), (1592, 490015), (1990, 392012), (3980, 196006), (4261, 183080), (4577, 170440), (7960, 98003), (8522, 91540), (9154, 85220), (17044, 45770), (18308, 42610), (21305, 36616), (22885, 34088)]