255954780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23311}}^1$

素因数の和:23387

約数の個数: 72

約数和(自身を含む): 789157824

約数和(自身を除く): 533203044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 23311, 46622, 69933, 93244, 116555, 139866, 209799, 233110, 279732, 349665, 419598, 466220, 699330, 839196, 1048995, 1398660, 1421971, 2097990, 2843942, 4195980, 4265913, 5687884, 7109855, 8531826, 12797739, 14219710, 17063652, 21329565, 25595478, 28439420, 42659130, 51190956, 63988695, 85318260, 127977390, 255954780]

約数ペア:

[(1, 255954780), (2, 127977390), (3, 85318260), (4, 63988695), (5, 51190956), (6, 42659130), (9, 28439420), (10, 25595478), (12, 21329565), (15, 17063652), (18, 14219710), (20, 12797739), (30, 8531826), (36, 7109855), (45, 5687884), (60, 4265913), (61, 4195980), (90, 2843942), (122, 2097990), (180, 1421971), (183, 1398660), (244, 1048995), (305, 839196), (366, 699330), (549, 466220), (610, 419598), (732, 349665), (915, 279732), (1098, 233110), (1220, 209799), (1830, 139866), (2196, 116555), (2745, 93244), (3660, 69933), (5490, 46622), (10980, 23311)]