81741830

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{1301}}^1$

素因数の和:1472

約数の個数: 32

約数和(自身を含む): 151115328

約数和(自身を除く): 69373498

約数列:

[1, 2, 5, 10, 61, 103, 122, 206, 305, 515, 610, 1030, 1301, 2602, 6283, 6505, 12566, 13010, 31415, 62830, 79361, 134003, 158722, 268006, 396805, 670015, 793610, 1340030, 8174183, 16348366, 40870915, 81741830]

約数ペア:

[(1, 81741830), (2, 40870915), (5, 16348366), (10, 8174183), (61, 1340030), (103, 793610), (122, 670015), (206, 396805), (305, 268006), (515, 158722), (610, 134003), (1030, 79361), (1301, 62830), (2602, 31415), (6283, 13010), (6505, 12566)]