202020280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{613}}^1$

素因数の和:749

約数の個数: 128

約数和(自身を含む): 572935680

約数和(自身を除く): 370915400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 107, 110, 140, 154, 214, 220, 280, 308, 385, 428, 440, 535, 613, 616, 749, 770, 856, 1070, 1177, 1226, 1498, 1540, 2140, 2354, 2452, 2996, 3065, 3080, 3745, 4280, 4291, 4708, 4904, 5885, 5992, 6130, 6743, 7490, 8239, 8582, 9416, 11770, 12260, 13486, 14980, 16478, 17164, 21455, 23540, 24520, 26972, 29960, 32956, 33715, 34328, 41195, 42910, 47080, 47201, 53944, 65591, 65912, 67430, 82390, 85820, 94402, 131182, 134860, 164780, 171640, 188804, 236005, 262364, 269720, 327955, 329560, 377608, 459137, 472010, 524728, 655910, 721501, 918274, 944020, 1311820, 1443002, 1836548, 1888040, 2295685, 2623640, 2886004, 3607505, 3673096, 4591370, 5050507, 5772008, 7215010, 9182740, 10101014, 14430020, 18365480, 20202028, 25252535, 28860040, 40404056, 50505070, 101010140, 202020280]

約数ペア:

[(1, 202020280), (2, 101010140), (4, 50505070), (5, 40404056), (7, 28860040), (8, 25252535), (10, 20202028), (11, 18365480), (14, 14430020), (20, 10101014), (22, 9182740), (28, 7215010), (35, 5772008), (40, 5050507), (44, 4591370), (55, 3673096), (56, 3607505), (70, 2886004), (77, 2623640), (88, 2295685), (107, 1888040), (110, 1836548), (140, 1443002), (154, 1311820), (214, 944020), (220, 918274), (280, 721501), (308, 655910), (385, 524728), (428, 472010), (440, 459137), (535, 377608), (613, 329560), (616, 327955), (749, 269720), (770, 262364), (856, 236005), (1070, 188804), (1177, 171640), (1226, 164780), (1498, 134860), (1540, 131182), (2140, 94402), (2354, 85820), (2452, 82390), (2996, 67430), (3065, 65912), (3080, 65591), (3745, 53944), (4280, 47201), (4291, 47080), (4708, 42910), (4904, 41195), (5885, 34328), (5992, 33715), (6130, 32956), (6743, 29960), (7490, 26972), (8239, 24520), (8582, 23540), (9416, 21455), (11770, 17164), (12260, 16478), (13486, 14980)]