306535580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{1019}}^1$

素因数の和:1143

約数の個数: 72

約数和(自身を含む): 705574800

約数和(自身を除く): 399039220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 169, 178, 260, 338, 356, 445, 676, 845, 890, 1019, 1157, 1690, 1780, 2038, 2314, 3380, 4076, 4628, 5095, 5785, 10190, 11570, 13247, 15041, 20380, 23140, 26494, 30082, 52988, 60164, 66235, 75205, 90691, 132470, 150410, 172211, 181382, 264940, 300820, 344422, 362764, 453455, 688844, 861055, 906910, 1178983, 1722110, 1813820, 2357966, 3444220, 4715932, 5894915, 11789830, 15326779, 23579660, 30653558, 61307116, 76633895, 153267790, 306535580]

約数ペア:

[(1, 306535580), (2, 153267790), (4, 76633895), (5, 61307116), (10, 30653558), (13, 23579660), (20, 15326779), (26, 11789830), (52, 5894915), (65, 4715932), (89, 3444220), (130, 2357966), (169, 1813820), (178, 1722110), (260, 1178983), (338, 906910), (356, 861055), (445, 688844), (676, 453455), (845, 362764), (890, 344422), (1019, 300820), (1157, 264940), (1690, 181382), (1780, 172211), (2038, 150410), (2314, 132470), (3380, 90691), (4076, 75205), (4628, 66235), (5095, 60164), (5785, 52988), (10190, 30082), (11570, 26494), (13247, 23140), (15041, 20380)]