211981560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{252359}}^1$

素因数の和:252380

約数の個数: 64

約数和(自身を含む): 726796800

約数和(自身を除く): 514815240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 252359, 504718, 757077, 1009436, 1261795, 1514154, 1766513, 2018872, 2523590, 3028308, 3533026, 3785385, 5047180, 5299539, 6056616, 7066052, 7570770, 8832565, 10094360, 10599078, 14132104, 15141540, 17665130, 21198156, 26497695, 30283080, 35330260, 42396312, 52995390, 70660520, 105990780, 211981560]

約数ペア:

[(1, 211981560), (2, 105990780), (3, 70660520), (4, 52995390), (5, 42396312), (6, 35330260), (7, 30283080), (8, 26497695), (10, 21198156), (12, 17665130), (14, 15141540), (15, 14132104), (20, 10599078), (21, 10094360), (24, 8832565), (28, 7570770), (30, 7066052), (35, 6056616), (40, 5299539), (42, 5047180), (56, 3785385), (60, 3533026), (70, 3028308), (84, 2523590), (105, 2018872), (120, 1766513), (140, 1514154), (168, 1261795), (210, 1009436), (280, 757077), (420, 504718), (840, 252359)]