18288220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{479}}^1$

素因数の和:594

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 22354340

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 83, 92, 115, 166, 230, 332, 415, 460, 479, 830, 958, 1660, 1909, 1916, 2395, 3818, 4790, 7636, 9545, 9580, 11017, 19090, 22034, 38180, 39757, 44068, 55085, 79514, 110170, 159028, 198785, 220340, 397570, 795140, 914411, 1828822, 3657644, 4572055, 9144110, 18288220]

約数ペア:

[(1, 18288220), (2, 9144110), (4, 4572055), (5, 3657644), (10, 1828822), (20, 914411), (23, 795140), (46, 397570), (83, 220340), (92, 198785), (115, 159028), (166, 110170), (230, 79514), (332, 55085), (415, 44068), (460, 39757), (479, 38180), (830, 22034), (958, 19090), (1660, 11017), (1909, 9580), (1916, 9545), (2395, 7636), (3818, 4790)]