211982820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{72103}}^1$

素因数の和:72129

約数の個数: 72

約数和(自身を含む): 690467904

約数和(自身を除く): 478485084

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 72103, 144206, 216309, 288412, 360515, 432618, 504721, 721030, 865236, 1009442, 1081545, 1442060, 1514163, 2018884, 2163090, 2523605, 3028326, 3533047, 4326180, 5047210, 6056652, 7066094, 7570815, 10094420, 10599141, 14132188, 15141630, 17665235, 21198282, 30283260, 35330470, 42396564, 52995705, 70660940, 105991410, 211982820]

約数ペア:

[(1, 211982820), (2, 105991410), (3, 70660940), (4, 52995705), (5, 42396564), (6, 35330470), (7, 30283260), (10, 21198282), (12, 17665235), (14, 15141630), (15, 14132188), (20, 10599141), (21, 10094420), (28, 7570815), (30, 7066094), (35, 6056652), (42, 5047210), (49, 4326180), (60, 3533047), (70, 3028326), (84, 2523605), (98, 2163090), (105, 2018884), (140, 1514163), (147, 1442060), (196, 1081545), (210, 1009442), (245, 865236), (294, 721030), (420, 504721), (490, 432618), (588, 360515), (735, 288412), (980, 216309), (1470, 144206), (2940, 72103)]