131494140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1627}}^1$

素因数の和:2091

約数の個数: 72

約数和(自身を含む): 399999600

約数和(自身を除く): 268505460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449, 898, 1347, 1627, 1796, 2245, 2694, 3254, 4041, 4490, 4881, 5388, 6508, 6735, 8082, 8135, 8980, 9762, 13470, 14643, 16164, 16270, 19524, 20205, 24405, 26940, 29286, 32540, 40410, 48810, 58572, 73215, 80820, 97620, 146430, 292860, 730523, 1461046, 2191569, 2922092, 3652615, 4383138, 6574707, 7305230, 8766276, 10957845, 13149414, 14610460, 21915690, 26298828, 32873535, 43831380, 65747070, 131494140]

約数ペア:

[(1, 131494140), (2, 65747070), (3, 43831380), (4, 32873535), (5, 26298828), (6, 21915690), (9, 14610460), (10, 13149414), (12, 10957845), (15, 8766276), (18, 7305230), (20, 6574707), (30, 4383138), (36, 3652615), (45, 2922092), (60, 2191569), (90, 1461046), (180, 730523), (449, 292860), (898, 146430), (1347, 97620), (1627, 80820), (1796, 73215), (2245, 58572), (2694, 48810), (3254, 40410), (4041, 32540), (4490, 29286), (4881, 26940), (5388, 24405), (6508, 20205), (6735, 19524), (8082, 16270), (8135, 16164), (8980, 14643), (9762, 13470)]