489749520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{156971}}^1$

素因数の和:157000

約数の個数: 80

約数和(自身を含む): 1635020352

約数和(自身を除く): 1145270832

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 156971, 313942, 470913, 627884, 784855, 941826, 1255768, 1569710, 1883652, 2040623, 2354565, 2511536, 3139420, 3767304, 4081246, 4709130, 6121869, 6278840, 7534608, 8162492, 9418260, 10203115, 12243738, 12557680, 16324984, 18836520, 20406230, 24487476, 30609345, 32649968, 37673040, 40812460, 48974952, 61218690, 81624920, 97949904, 122437380, 163249840, 244874760, 489749520]

約数ペア:

[(1, 489749520), (2, 244874760), (3, 163249840), (4, 122437380), (5, 97949904), (6, 81624920), (8, 61218690), (10, 48974952), (12, 40812460), (13, 37673040), (15, 32649968), (16, 30609345), (20, 24487476), (24, 20406230), (26, 18836520), (30, 16324984), (39, 12557680), (40, 12243738), (48, 10203115), (52, 9418260), (60, 8162492), (65, 7534608), (78, 6278840), (80, 6121869), (104, 4709130), (120, 4081246), (130, 3767304), (156, 3139420), (195, 2511536), (208, 2354565), (240, 2040623), (260, 1883652), (312, 1569710), (390, 1255768), (520, 941826), (624, 784855), (780, 627884), (1040, 470913), (1560, 313942), (3120, 156971)]