261004040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{2111}}^1$

素因数の和:2414

約数の個数: 64

約数和(自身を含む): 643230720

約数和(自身を除く): 382226680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 281, 440, 562, 1124, 1405, 2111, 2248, 2810, 3091, 4222, 5620, 6182, 8444, 10555, 11240, 12364, 15455, 16888, 21110, 23221, 24728, 30910, 42220, 46442, 61820, 84440, 92884, 116105, 123640, 185768, 232210, 464420, 593191, 928840, 1186382, 2372764, 2965955, 4745528, 5931910, 6525101, 11863820, 13050202, 23727640, 26100404, 32625505, 52200808, 65251010, 130502020, 261004040]

約数ペア:

[(1, 261004040), (2, 130502020), (4, 65251010), (5, 52200808), (8, 32625505), (10, 26100404), (11, 23727640), (20, 13050202), (22, 11863820), (40, 6525101), (44, 5931910), (55, 4745528), (88, 2965955), (110, 2372764), (220, 1186382), (281, 928840), (440, 593191), (562, 464420), (1124, 232210), (1405, 185768), (2111, 123640), (2248, 116105), (2810, 92884), (3091, 84440), (4222, 61820), (5620, 46442), (6182, 42220), (8444, 30910), (10555, 24728), (11240, 23221), (12364, 21110), (15455, 16888)]