28307940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:389

約数の個数: 96

約数和(自身を含む): 84139776

約数和(自身を除く): 55831836

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 73, 92, 115, 138, 146, 219, 230, 276, 281, 292, 345, 365, 438, 460, 562, 690, 730, 843, 876, 1095, 1124, 1380, 1405, 1460, 1679, 1686, 2190, 2810, 3358, 3372, 4215, 4380, 5037, 5620, 6463, 6716, 8395, 8430, 10074, 12926, 16790, 16860, 19389, 20148, 20513, 25185, 25852, 32315, 33580, 38778, 41026, 50370, 61539, 64630, 77556, 82052, 96945, 100740, 102565, 123078, 129260, 193890, 205130, 246156, 307695, 387780, 410260, 471799, 615390, 943598, 1230780, 1415397, 1887196, 2358995, 2830794, 4717990, 5661588, 7076985, 9435980, 14153970, 28307940]

約数ペア:

[(1, 28307940), (2, 14153970), (3, 9435980), (4, 7076985), (5, 5661588), (6, 4717990), (10, 2830794), (12, 2358995), (15, 1887196), (20, 1415397), (23, 1230780), (30, 943598), (46, 615390), (60, 471799), (69, 410260), (73, 387780), (92, 307695), (115, 246156), (138, 205130), (146, 193890), (219, 129260), (230, 123078), (276, 102565), (281, 100740), (292, 96945), (345, 82052), (365, 77556), (438, 64630), (460, 61539), (562, 50370), (690, 41026), (730, 38778), (843, 33580), (876, 32315), (1095, 25852), (1124, 25185), (1380, 20513), (1405, 20148), (1460, 19389), (1679, 16860), (1686, 16790), (2190, 12926), (2810, 10074), (3358, 8430), (3372, 8395), (4215, 6716), (4380, 6463), (5037, 5620)]