2021903080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{8537}}^1$

素因数の和:8770

約数の個数: 64

約数和(自身を含む): 4721172480

約数和(自身を除く): 2699269400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 191, 248, 310, 382, 620, 764, 955, 1240, 1528, 1910, 3820, 5921, 7640, 8537, 11842, 17074, 23684, 29605, 34148, 42685, 47368, 59210, 68296, 85370, 118420, 170740, 236840, 264647, 341480, 529294, 1058588, 1323235, 1630567, 2117176, 2646470, 3261134, 5292940, 6522268, 8152835, 10585880, 13044536, 16305670, 32611340, 50547577, 65222680, 101095154, 202190308, 252737885, 404380616, 505475770, 1010951540, 2021903080]

約数ペア:

[(1, 2021903080), (2, 1010951540), (4, 505475770), (5, 404380616), (8, 252737885), (10, 202190308), (20, 101095154), (31, 65222680), (40, 50547577), (62, 32611340), (124, 16305670), (155, 13044536), (191, 10585880), (248, 8152835), (310, 6522268), (382, 5292940), (620, 3261134), (764, 2646470), (955, 2117176), (1240, 1630567), (1528, 1323235), (1910, 1058588), (3820, 529294), (5921, 341480), (7640, 264647), (8537, 236840), (11842, 170740), (17074, 118420), (23684, 85370), (29605, 68296), (34148, 59210), (42685, 47368)]