2720080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{281}}^1$

素因数の和:316

約数の個数: 60

約数和(自身を含む): 6976116

約数和(自身を除く): 4256036

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 281, 440, 484, 562, 605, 880, 968, 1124, 1210, 1405, 1936, 2248, 2420, 2810, 3091, 4496, 4840, 5620, 6182, 9680, 11240, 12364, 15455, 22480, 24728, 30910, 34001, 49456, 61820, 68002, 123640, 136004, 170005, 247280, 272008, 340010, 544016, 680020, 1360040, 2720080]

約数ペア:

[(1, 2720080), (2, 1360040), (4, 680020), (5, 544016), (8, 340010), (10, 272008), (11, 247280), (16, 170005), (20, 136004), (22, 123640), (40, 68002), (44, 61820), (55, 49456), (80, 34001), (88, 30910), (110, 24728), (121, 22480), (176, 15455), (220, 12364), (242, 11240), (281, 9680), (440, 6182), (484, 5620), (562, 4840), (605, 4496), (880, 3091), (968, 2810), (1124, 2420), (1210, 2248), (1405, 1936)]