221558820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{1259}}^1$

素因数の和:1697

約数の個数: 96

約数和(自身を含む): 711244800

約数和(自身を除く): 489685980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 419, 420, 838, 1257, 1259, 1676, 2095, 2514, 2518, 2933, 3777, 4190, 5028, 5036, 5866, 6285, 6295, 7554, 8380, 8799, 8813, 11732, 12570, 12590, 14665, 15108, 17598, 17626, 18885, 25140, 25180, 26439, 29330, 35196, 35252, 37770, 43995, 44065, 52878, 58660, 75540, 87990, 88130, 105756, 132195, 175980, 176260, 264390, 527521, 528780, 1055042, 1582563, 2110084, 2637605, 3165126, 3692647, 5275210, 6330252, 7385294, 7912815, 10550420, 11077941, 14770588, 15825630, 18463235, 22155882, 31651260, 36926470, 44311764, 55389705, 73852940, 110779410, 221558820]

約数ペア:

[(1, 221558820), (2, 110779410), (3, 73852940), (4, 55389705), (5, 44311764), (6, 36926470), (7, 31651260), (10, 22155882), (12, 18463235), (14, 15825630), (15, 14770588), (20, 11077941), (21, 10550420), (28, 7912815), (30, 7385294), (35, 6330252), (42, 5275210), (60, 3692647), (70, 3165126), (84, 2637605), (105, 2110084), (140, 1582563), (210, 1055042), (419, 528780), (420, 527521), (838, 264390), (1257, 176260), (1259, 175980), (1676, 132195), (2095, 105756), (2514, 88130), (2518, 87990), (2933, 75540), (3777, 58660), (4190, 52878), (5028, 44065), (5036, 43995), (5866, 37770), (6285, 35252), (6295, 35196), (7554, 29330), (8380, 26439), (8799, 25180), (8813, 25140), (11732, 18885), (12570, 17626), (12590, 17598), (14665, 15108)]