18400020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{683}}^1$

素因数の和:1144

約数の個数: 48

約数和(自身を含む): 51710400

約数和(自身を除く): 33310380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 449, 683, 898, 1347, 1366, 1796, 2049, 2245, 2694, 2732, 3415, 4098, 4490, 5388, 6735, 6830, 8196, 8980, 10245, 13470, 13660, 20490, 26940, 40980, 306667, 613334, 920001, 1226668, 1533335, 1840002, 3066670, 3680004, 4600005, 6133340, 9200010, 18400020]

約数ペア:

[(1, 18400020), (2, 9200010), (3, 6133340), (4, 4600005), (5, 3680004), (6, 3066670), (10, 1840002), (12, 1533335), (15, 1226668), (20, 920001), (30, 613334), (60, 306667), (449, 40980), (683, 26940), (898, 20490), (1347, 13660), (1366, 13470), (1796, 10245), (2049, 8980), (2245, 8196), (2694, 6830), (2732, 6735), (3415, 5388), (4098, 4490)]