204030640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2251}}^1$

素因数の和:2378

約数の個数: 80

約数和(自身を含む): 522752256

約数和(自身を除く): 318721616

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 103, 110, 176, 206, 220, 412, 440, 515, 824, 880, 1030, 1133, 1648, 2060, 2251, 2266, 4120, 4502, 4532, 5665, 8240, 9004, 9064, 11255, 11330, 18008, 18128, 22510, 22660, 24761, 36016, 45020, 45320, 49522, 90040, 90640, 99044, 123805, 180080, 198088, 231853, 247610, 396176, 463706, 495220, 927412, 990440, 1159265, 1854824, 1980880, 2318530, 2550383, 3709648, 4637060, 5100766, 9274120, 10201532, 12751915, 18548240, 20403064, 25503830, 40806128, 51007660, 102015320, 204030640]

約数ペア:

[(1, 204030640), (2, 102015320), (4, 51007660), (5, 40806128), (8, 25503830), (10, 20403064), (11, 18548240), (16, 12751915), (20, 10201532), (22, 9274120), (40, 5100766), (44, 4637060), (55, 3709648), (80, 2550383), (88, 2318530), (103, 1980880), (110, 1854824), (176, 1159265), (206, 990440), (220, 927412), (412, 495220), (440, 463706), (515, 396176), (824, 247610), (880, 231853), (1030, 198088), (1133, 180080), (1648, 123805), (2060, 99044), (2251, 90640), (2266, 90040), (4120, 49522), (4502, 45320), (4532, 45020), (5665, 36016), (8240, 24761), (9004, 22660), (9064, 22510), (11255, 18128), (11330, 18008)]