209315540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:369

約数の個数: 96

約数和(自身を含む): 516015360

約数和(自身を除く): 306699820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 107, 140, 157, 178, 214, 314, 356, 428, 445, 535, 623, 628, 749, 785, 890, 1070, 1099, 1246, 1498, 1570, 1780, 2140, 2198, 2492, 2996, 3115, 3140, 3745, 4396, 5495, 6230, 7490, 9523, 10990, 12460, 13973, 14980, 16799, 19046, 21980, 27946, 33598, 38092, 47615, 55892, 66661, 67196, 69865, 83995, 95230, 97811, 117593, 133322, 139730, 167990, 190460, 195622, 235186, 266644, 279460, 333305, 335980, 391244, 470372, 489055, 587965, 666610, 978110, 1175930, 1333220, 1495111, 1956220, 2351860, 2990222, 5980444, 7475555, 10465777, 14951110, 20931554, 29902220, 41863108, 52328885, 104657770, 209315540]

約数ペア:

[(1, 209315540), (2, 104657770), (4, 52328885), (5, 41863108), (7, 29902220), (10, 20931554), (14, 14951110), (20, 10465777), (28, 7475555), (35, 5980444), (70, 2990222), (89, 2351860), (107, 1956220), (140, 1495111), (157, 1333220), (178, 1175930), (214, 978110), (314, 666610), (356, 587965), (428, 489055), (445, 470372), (535, 391244), (623, 335980), (628, 333305), (749, 279460), (785, 266644), (890, 235186), (1070, 195622), (1099, 190460), (1246, 167990), (1498, 139730), (1570, 133322), (1780, 117593), (2140, 97811), (2198, 95230), (2492, 83995), (2996, 69865), (3115, 67196), (3140, 66661), (3745, 55892), (4396, 47615), (5495, 38092), (6230, 33598), (7490, 27946), (9523, 21980), (10990, 19046), (12460, 16799), (13973, 14980)]