257321190

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{3511}}^1$

素因数の和:3877

約数の個数: 64

約数和(自身を含む): 708019200

約数和(自身を除く): 450698010

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 349, 698, 1047, 1745, 2094, 2443, 3490, 3511, 4886, 5235, 7022, 7329, 10470, 10533, 12215, 14658, 17555, 21066, 24430, 24577, 35110, 36645, 49154, 52665, 73290, 73731, 105330, 122885, 147462, 245770, 368655, 737310, 1225339, 2450678, 3676017, 6126695, 7352034, 8577373, 12253390, 17154746, 18380085, 25732119, 36760170, 42886865, 51464238, 85773730, 128660595, 257321190]

約数ペア:

[(1, 257321190), (2, 128660595), (3, 85773730), (5, 51464238), (6, 42886865), (7, 36760170), (10, 25732119), (14, 18380085), (15, 17154746), (21, 12253390), (30, 8577373), (35, 7352034), (42, 6126695), (70, 3676017), (105, 2450678), (210, 1225339), (349, 737310), (698, 368655), (1047, 245770), (1745, 147462), (2094, 122885), (2443, 105330), (3490, 73731), (3511, 73290), (4886, 52665), (5235, 49154), (7022, 36645), (7329, 35110), (10470, 24577), (10533, 24430), (12215, 21066), (14658, 17555)]