18051440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 46577376

約数和(自身を除く): 28525936

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 73, 80, 88, 110, 146, 176, 220, 281, 292, 365, 440, 562, 584, 730, 803, 880, 1124, 1168, 1405, 1460, 1606, 2248, 2810, 2920, 3091, 3212, 4015, 4496, 5620, 5840, 6182, 6424, 8030, 11240, 12364, 12848, 15455, 16060, 20513, 22480, 24728, 30910, 32120, 41026, 49456, 61820, 64240, 82052, 102565, 123640, 164104, 205130, 225643, 247280, 328208, 410260, 451286, 820520, 902572, 1128215, 1641040, 1805144, 2256430, 3610288, 4512860, 9025720, 18051440]

約数ペア:

[(1, 18051440), (2, 9025720), (4, 4512860), (5, 3610288), (8, 2256430), (10, 1805144), (11, 1641040), (16, 1128215), (20, 902572), (22, 820520), (40, 451286), (44, 410260), (55, 328208), (73, 247280), (80, 225643), (88, 205130), (110, 164104), (146, 123640), (176, 102565), (220, 82052), (281, 64240), (292, 61820), (365, 49456), (440, 41026), (562, 32120), (584, 30910), (730, 24728), (803, 22480), (880, 20513), (1124, 16060), (1168, 15455), (1405, 12848), (1460, 12364), (1606, 11240), (2248, 8030), (2810, 6424), (2920, 6182), (3091, 5840), (3212, 5620), (4015, 4496)]