18260830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 38782800

約数和(自身を除く): 20521970

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 83, 98, 166, 245, 415, 449, 490, 581, 830, 898, 1162, 2245, 2905, 3143, 4067, 4490, 5810, 6286, 8134, 15715, 20335, 22001, 31430, 37267, 40670, 44002, 74534, 110005, 186335, 220010, 260869, 372670, 521738, 1304345, 1826083, 2608690, 3652166, 9130415, 18260830]

約数ペア:

[(1, 18260830), (2, 9130415), (5, 3652166), (7, 2608690), (10, 1826083), (14, 1304345), (35, 521738), (49, 372670), (70, 260869), (83, 220010), (98, 186335), (166, 110005), (245, 74534), (415, 44002), (449, 40670), (490, 37267), (581, 31430), (830, 22001), (898, 20335), (1162, 15715), (2245, 8134), (2905, 6286), (3143, 5810), (4067, 4490)]