18243820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{863}}^1$

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 44126208

約数和(自身を除く): 25882388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151, 302, 604, 755, 863, 1057, 1510, 1726, 2114, 3020, 3452, 4228, 4315, 5285, 6041, 8630, 10570, 12082, 17260, 21140, 24164, 30205, 60410, 120820, 130313, 260626, 521252, 651565, 912191, 1303130, 1824382, 2606260, 3648764, 4560955, 9121910, 18243820]

約数ペア:

[(1, 18243820), (2, 9121910), (4, 4560955), (5, 3648764), (7, 2606260), (10, 1824382), (14, 1303130), (20, 912191), (28, 651565), (35, 521252), (70, 260626), (140, 130313), (151, 120820), (302, 60410), (604, 30205), (755, 24164), (863, 21140), (1057, 17260), (1510, 12082), (1726, 10570), (2114, 8630), (3020, 6041), (3452, 5285), (4228, 4315)]