678889260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{538801}}^1$

素因数の和:538823

約数の個数: 72

約数和(自身を含む): 2353487136

約数和(自身を除く): 1674597876

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, 538801, 1077602, 1616403, 2155204, 2694005, 3232806, 3771607, 4849209, 5388010, 6465612, 7543214, 8082015, 9698418, 10776020, 11314821, 15086428, 16164030, 18858035, 19396836, 22629642, 24246045, 32328060, 33944463, 37716070, 45259284, 48492090, 56574105, 67888926, 75432140, 96984180, 113148210, 135777852, 169722315, 226296420, 339444630, 678889260]

約数ペア:

[(1, 678889260), (2, 339444630), (3, 226296420), (4, 169722315), (5, 135777852), (6, 113148210), (7, 96984180), (9, 75432140), (10, 67888926), (12, 56574105), (14, 48492090), (15, 45259284), (18, 37716070), (20, 33944463), (21, 32328060), (28, 24246045), (30, 22629642), (35, 19396836), (36, 18858035), (42, 16164030), (45, 15086428), (60, 11314821), (63, 10776020), (70, 9698418), (84, 8082015), (90, 7543214), (105, 6465612), (126, 5388010), (140, 4849209), (180, 3771607), (210, 3232806), (252, 2694005), (315, 2155204), (420, 1616403), (630, 1077602), (1260, 538801)]