217729260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{172801}}^1$

素因数の和:172823

約数の個数: 72

約数和(自身を含む): 754799136

約数和(自身を除く): 537069876

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 172801, 345602, 518403, 691204, 864005, 1036806, 1209607, 1555209, 1728010, 2073612, 2419214, 2592015, 3110418, 3456020, 3628821, 4838428, 5184030, 6048035, 6220836, 7257642, 7776045, 10368060, 10886463, 12096070, 14515284, 15552090, 18144105, 21772926, 24192140, 31104180, 36288210, 43545852, 54432315, 72576420, 108864630, 217729260]

約数ペア:

[(1, 217729260), (2, 108864630), (3, 72576420), (4, 54432315), (5, 43545852), (6, 36288210), (7, 31104180), (9, 24192140), (10, 21772926), (12, 18144105), (14, 15552090), (15, 14515284), (18, 12096070), (20, 10886463), (21, 10368060), (28, 7776045), (30, 7257642), (35, 6220836), (36, 6048035), (42, 5184030), (45, 4838428), (60, 3628821), (63, 3456020), (70, 3110418), (84, 2592015), (90, 2419214), (105, 2073612), (126, 1728010), (140, 1555209), (180, 1209607), (210, 1036806), (252, 864005), (315, 691204), (420, 518403), (630, 345602), (1260, 172801)]