400677700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{929}}^1$

素因数の和:1189

約数の個数: 72

約数和(自身を含む): 920253600

約数和(自身を除く): 519575900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 227, 380, 454, 475, 908, 929, 950, 1135, 1858, 1900, 2270, 3716, 4313, 4540, 4645, 5675, 8626, 9290, 11350, 17252, 17651, 18580, 21565, 22700, 23225, 35302, 43130, 46450, 70604, 86260, 88255, 92900, 107825, 176510, 210883, 215650, 353020, 421766, 431300, 441275, 843532, 882550, 1054415, 1765100, 2108830, 4006777, 4217660, 5272075, 8013554, 10544150, 16027108, 20033885, 21088300, 40067770, 80135540, 100169425, 200338850, 400677700]

約数ペア:

[(1, 400677700), (2, 200338850), (4, 100169425), (5, 80135540), (10, 40067770), (19, 21088300), (20, 20033885), (25, 16027108), (38, 10544150), (50, 8013554), (76, 5272075), (95, 4217660), (100, 4006777), (190, 2108830), (227, 1765100), (380, 1054415), (454, 882550), (475, 843532), (908, 441275), (929, 431300), (950, 421766), (1135, 353020), (1858, 215650), (1900, 210883), (2270, 176510), (3716, 107825), (4313, 92900), (4540, 88255), (4645, 86260), (5675, 70604), (8626, 46450), (9290, 43130), (11350, 35302), (17252, 23225), (17651, 22700), (18580, 21565)]