2017209080

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1\times {\mathrm{911}}^1$

素因数の和:1400

約数の個数: 64

約数和(自身を含む): 4583018880

約数和(自身を除く): 2565809800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 281, 394, 562, 788, 911, 985, 1124, 1405, 1576, 1822, 1970, 2248, 2810, 3644, 3940, 4555, 5620, 7288, 7880, 9110, 11240, 18220, 36440, 55357, 110714, 179467, 221428, 255991, 276785, 358934, 442856, 511982, 553570, 717868, 897335, 1023964, 1107140, 1279955, 1435736, 1794670, 2047928, 2214280, 2559910, 3589340, 5119820, 7178680, 10239640, 50430227, 100860454, 201720908, 252151135, 403441816, 504302270, 1008604540, 2017209080]

約数ペア:

[(1, 2017209080), (2, 1008604540), (4, 504302270), (5, 403441816), (8, 252151135), (10, 201720908), (20, 100860454), (40, 50430227), (197, 10239640), (281, 7178680), (394, 5119820), (562, 3589340), (788, 2559910), (911, 2214280), (985, 2047928), (1124, 1794670), (1405, 1435736), (1576, 1279955), (1822, 1107140), (1970, 1023964), (2248, 897335), (2810, 717868), (3644, 553570), (3940, 511982), (4555, 442856), (5620, 358934), (7288, 276785), (7880, 255991), (9110, 221428), (11240, 179467), (18220, 110714), (36440, 55357)]